Calibration Blocks

Calibration-blocks-intro_2

Elcometer NDT offer a comprehensive range of Calibration Blocks to suit a wide range of applications and standards.

  • Summary
    • Summary

    • Calibration blocks are available as a set or individually, allowing users to select the most appropriate thickness for their application. Elcometer NDT calibration standards are manufactured from 4340 steel to a tolerance of ±1% of the nominal thickness and are supplied complete with calibration certificates.

      Selecting the right calibration block
      Selecting the correct calibration block for your application is essential to ensure accurate evaluation. The form, shape and material of the calibration block should be appropriate for the material being inspected. Any artificially induced flaw should closely resemble that of the actual flaw being tested for.

  • Technical Information
    • Technical Specification
      Calibration Blocks
      Steel Aluminium Stainless Steel Titanium Block Type
      TW-24001-S1018 TW-24001-A TW-24001-SS TW-24001-T 4 Step Block 0.04 - 0.25"
      TW-24004-S4340 TW-24004-A TW-24004-SS TW-24004-T 4 Step Block 0.25 - 1.00"
      TW-24002-S4340 TW-24002-A TW-24002-SS TW-24002-T 5 Step Block 0.10 - 0.5"
      TW-24005-S1018 TW-24005-A TW-24005-SS TW-24005-T 8 Step Block 1 - 8mm
      TW-24003-S1018 TW-24003-A TW-24003-SS TW-24003-T 10 Step Block 0.1 - 1.0"
      TW-24006-S1018 TW-24006-A TW-24006-SS TW-24006-T 10 Step Block 2 - 20mm
      TW-24007-S1018 TW-24007-A TW-24007-SS TW-24007-T 10 Step Block 2.5 - 25mm
      TW-24010-S TW-24010-A TW-24010-SS TW-24010-T IIW V-1 (Metric BS 2704)
      TW-24008-S TW-24008-A TW-24008-SS TW-24008-T IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
      TW-24009-S TW-24009-A TW-24009-SS TW-24009-T IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
      TW-24009-S-2 TW-24009-A-2 TW-24009-SS-2 TW-24009-T-2 Mini IIW
      TW-24015-S205 TW-24015-A205 TW-24015-SS205 TW-24015-T205 Angle Beam V-2 20mm & 5mm
      TW-24016-S201 TW-24016-A201 TW-24016-SS201 TW-24016-T201 Angle Beam V-2 20mm & 1.5mm
      TW-24017-S121 TW-24017-A121 TW-24017-SS121 TW-24017-T121 Angle Beam V-2 12.5mm & 1.5mm
      TW-24018-S125 TW-24018-A125 TW-24018-SS125 TW-24018-T125 Angle Beam V-2 12.5mm & 5mm
      TW-24014-S TW-24014-A TW-24014-SS TW-24014-T Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
      TW-24012-S TW-24012-A TW-24012-SS TW-24012-T DSC (AWS & ASTM E-164)
      TW-24013-S4340 TW-24013-A TW-24013-SS TW-24013-T DS (ANSI & AWS)
      TW-24019-S TW-24019-A TW-24019-SS TW-24019-T ANSI/AWS Resolution - RC
      TW-24020-S TW-24020-A TW-24020-SS TW-24020-T SC (AWS & ASTM E-164)
      TW-24021-S TW-24021-A TW-24021-SS TW-24021-T DC (AWS & ASTM E-164)
      TW-24022-S TW-24022-A TW-24022-SS TW-24022-T IOW Beam Profile (BS2704)
      TW-24023-S TW-24023-A TW-24023-SS TW-24023-T NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
      TW-24024-S TW-24024-A TW-24024-SS TW-24024-T ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
      TW-24025-S TW-24025-A TW-24025-SS TW-24025-T ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
      TW-24026-S TW-24026-A TW-24026-SS TW-24026-T ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
      TW-24027-S TW-24027-A TW-24027-SS TW-24027-T ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
      Steel TW-24001-S1018
      Aluminium TW-24001-A
      Stainless Steel TW-24001-SS
      Titanium TW-24001-T
      Block Type 4 Step Block 0.04 - 0.25"
      Steel TW-24004-S4340
      Aluminium TW-24004-A
      Stainless Steel TW-24004-SS
      Titanium TW-24004-T
      Block Type 4 Step Block 0.25 - 1.00"
      Steel TW-24002-S4340
      Aluminium TW-24002-A
      Stainless Steel TW-24002-SS
      Titanium TW-24002-T
      Block Type 5 Step Block 0.10 - 0.5"
      Steel TW-24005-S1018
      Aluminium TW-24005-A
      Stainless Steel TW-24005-SS
      Titanium TW-24005-T
      Block Type 8 Step Block 1 - 8mm
      Steel TW-24003-S1018
      Aluminium TW-24003-A
      Stainless Steel TW-24003-SS
      Titanium TW-24003-T
      Block Type 10 Step Block 0.1 - 1.0"
      Steel TW-24006-S1018
      Aluminium TW-24006-A
      Stainless Steel TW-24006-SS
      Titanium TW-24006-T
      Block Type 10 Step Block 2 - 20mm
      Steel TW-24007-S1018
      Aluminium TW-24007-A
      Stainless Steel TW-24007-SS
      Titanium TW-24007-T
      Block Type 10 Step Block 2.5 - 25mm
      Steel TW-24010-S
      Aluminium TW-24010-A
      Stainless Steel TW-24010-SS
      Titanium TW-24010-T
      Block Type IIW V-1 (Metric BS 2704)
      Steel TW-24008-S
      Aluminium TW-24008-A
      Stainless Steel TW-24008-SS
      Titanium TW-24008-T
      Block Type IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
      Steel TW-24009-S
      Aluminium TW-24009-A
      Stainless Steel TW-24009-SS
      Titanium TW-24009-T
      Block Type IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
      Steel TW-24009-S-2
      Aluminium TW-24009-A-2
      Stainless Steel TW-24009-SS-2
      Titanium TW-24009-T-2
      Block Type Mini IIW
      Steel TW-24015-S205
      Aluminium TW-24015-A205
      Stainless Steel TW-24015-SS205
      Titanium TW-24015-T205
      Block Type Angle Beam V-2 20mm & 5mm
      Steel TW-24016-S201
      Aluminium TW-24016-A201
      Stainless Steel TW-24016-SS201
      Titanium TW-24016-T201
      Block Type Angle Beam V-2 20mm & 1.5mm
      Steel TW-24017-S121
      Aluminium TW-24017-A121
      Stainless Steel TW-24017-SS121
      Titanium TW-24017-T121
      Block Type Angle Beam V-2 12.5mm & 1.5mm
      Steel TW-24018-S125
      Aluminium TW-24018-A125
      Stainless Steel TW-24018-SS125
      Titanium TW-24018-T125
      Block Type Angle Beam V-2 12.5mm & 5mm
      Steel TW-24014-S
      Aluminium TW-24014-A
      Stainless Steel TW-24014-SS
      Titanium TW-24014-T
      Block Type Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
      Steel TW-24012-S
      Aluminium TW-24012-A
      Stainless Steel TW-24012-SS
      Titanium TW-24012-T
      Block Type DSC (AWS & ASTM E-164)
      Steel TW-24013-S4340
      Aluminium TW-24013-A
      Stainless Steel TW-24013-SS
      Titanium TW-24013-T
      Block Type DS (ANSI & AWS)
      Steel TW-24019-S
      Aluminium TW-24019-A
      Stainless Steel TW-24019-SS
      Titanium TW-24019-T
      Block Type ANSI/AWS Resolution - RC
      Steel TW-24020-S
      Aluminium TW-24020-A
      Stainless Steel TW-24020-SS
      Titanium TW-24020-T
      Block Type SC (AWS & ASTM E-164)
      Steel TW-24021-S
      Aluminium TW-24021-A
      Stainless Steel TW-24021-SS
      Titanium TW-24021-T
      Block Type DC (AWS & ASTM E-164)
      Steel TW-24022-S
      Aluminium TW-24022-A
      Stainless Steel TW-24022-SS
      Titanium TW-24022-T
      Block Type IOW Beam Profile (BS2704)
      Steel TW-24023-S
      Aluminium TW-24023-A
      Stainless Steel TW-24023-SS
      Titanium TW-24023-T
      Block Type NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
      Steel TW-24024-S
      Aluminium TW-24024-A
      Stainless Steel TW-24024-SS
      Titanium TW-24024-T
      Block Type ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
      Steel TW-24025-S
      Aluminium TW-24025-A
      Stainless Steel TW-24025-SS
      Titanium TW-24025-T
      Block Type ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
      Steel TW-24026-S
      Aluminium TW-24026-A
      Stainless Steel TW-24026-SS
      Titanium TW-24026-T
      Block Type ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
      Steel TW-24027-S
      Aluminium TW-24027-A
      Stainless Steel TW-24027-SS
      Titanium TW-24027-T
      Block Type ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
      Calibration Standard Sets
      Part Number Description
      T920CALSTD-SET1 Calibration Standard Set;
      Nominal Thickness; 2-30mm (0.08-1.18")1
      Comprising of nominal thickness; 2, 5, 10, 15, 20, 25 & 30mm (0.08, 0.20, 0.39, 0.59, 0.79, 0.98 & 1.18"), complete with holder and calibration certificate.
      T920CALSTD-SET2 Calibration Standard Set;
      Nominal Thickness; 40 - 100mm (1.57 - 3.94")1
      Comprising of nominal thickness; 40, 50, 60, 70, 80, 90 & 100mm (1.57, 1.97, 2.36, 2.76, 3.15, 3.54 & 3.94"), complete with holder and calibration certificate
      T920CALSTD-HLD Calibration Holder;
      for thicknesses up to 100mm (3.94")
      Individual Calibration Standards
      Part Number Nominal Thickness (mm) Nominal Thickness (inches)1
      T920CALSTD-2 2 0.078
      T920CALSTD-5 5 0.196
      T920CALSTD-10 10 0.393
      T920CALSTD-15 15 0.590
      T920CALSTD-20 20 0.787
      T920CALSTD-25 25 0.984
      T920CALSTD-30 30 1.181
      T920CALSTD-40 40 1.574
      T920CALSTD-50 50 1.966
      T920CALSTD-60 60 2.362
      T920CALSTD-70 70 2.755
      T920CALSTD-80 80 3.149
      T920CALSTD-90 90 3.543
      T920CALSTD-100 100 3.937
      1Imperial values for information purposes only. Calibration standards are manufactured and measured in millimetres.
  • Part Numbers
    • Part Numbers
      Calibration Blocks
      • Stainless Steel Calibration Blocks
        • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
        • Part Number : TW-24027-T
        • Certification : No Certificate
      • Calibration Standard Set
        • Part Number : T920CALSTD-SET1
        • Certification : No Certificate
      • Calibration Standard Set
        • Part Number : T920CALSTD-SET2
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
        • Part Number : TW-24027-SS
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
        • Part Number : TW-24027-A
        • Certification : No Certificate
      • Calibration Holder
        • Part Number : T920CALSTD-HLD
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 2
        • Nominal Thickness (inches)1: 0.078
        • Part Number : T920CALSTD-2
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
        • Part Number : TW-24027-S
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 5
        • Nominal Thickness (inches)1: 0.196
        • Part Number : T920CALSTD-5
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24026-T
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24026-SS
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 10
        • Nominal Thickness (inches)1: 0.393
        • Part Number : T920CALSTD-10
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24026-A
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 15
        • Nominal Thickness (inches)1: 0.590
        • Part Number : T920CALSTD-15
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24026-S
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 20
        • Nominal Thickness (inches)1: 0.787
        • Part Number : T920CALSTD-20
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 25
        • Nominal Thickness (inches)1: 0.984
        • Part Number : T920CALSTD-25
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 4 Step Block 0.04 - 0.25"
        • Part Number : TW-24001-A
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 30
        • Nominal Thickness (inches)1: 1.181
        • Part Number : T920CALSTD-30
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 4 Step Block 0.04 - 0.25"
        • Part Number : TW-24001-SS
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 40
        • Nominal Thickness (inches)1: 1.574
        • Part Number : T920CALSTD-40
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 50
        • Nominal Thickness (inches)1: 1.966
        • Part Number : T920CALSTD-50
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 4 Step Block 0.04 - 0.25"
        • Part Number : TW-24001-S1018
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 60
        • Nominal Thickness (inches)1: 2.362
        • Part Number : T920CALSTD-60
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 4 Step Block 0.04 - 0.25"
        • Part Number : TW-24001-T
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 4 Step Block 0.25 - 1.00"
        • Part Number : TW-24004-S4340
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 70
        • Nominal Thickness (inches)1: 2.755
        • Part Number : T920CALSTD-70
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 4 Step Block 0.25 - 1.00"
        • Part Number : TW-24004-A
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 80
        • Nominal Thickness (inches)1: 3.149
        • Part Number : T920CALSTD-80
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 90
        • Nominal Thickness (inches)1: 3.543
        • Part Number : T920CALSTD-90
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 4 Step Block 0.25 - 1.00"
        • Part Number : TW-24004-SS
        • Certification : No Certificate
      • Individual Calibration Standard
        • Nominal Thickness (mm): 100
        • Nominal Thickness (inches)1: 3.937
        • Part Number : T920CALSTD-100
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 4 Step Block 0.25 - 1.00"
        • Part Number : TW-24004-T
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 10 Step Block 0.1 - 1.0"
        • Part Number : TW-24003-S1018
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 5 Step Block 0.10 - 0.5"
        • Part Number : TW-24002-S4340
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
        • Part Number : TW-24023-S
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
        • Part Number : TW-24014-S
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 1.5mm
        • Part Number : TW-24016-SS201
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 5 Step Block 0.10 - 0.5"
        • Part Number : TW-24002-A
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24025-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
        • Part Number : TW-24014-A
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 1.5mm
        • Part Number : TW-24016-T201
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
        • Part Number : TW-24014-SS
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24025-SS
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 1.5mm
        • Part Number : TW-24017-S121
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 5 Step Block 0.10 - 0.5"
        • Part Number : TW-24002-SS
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 5 Step Block 0.10 - 0.5"
        • Part Number : TW-24002-T
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
        • Part Number : TW-24014-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 1.5mm
        • Part Number : TW-24017-A121
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24025-A
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 8 Step Block 1 - 8mm
        • Part Number : TW-24005-S1018
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: DSC (AWS & ASTM E-164)
        • Part Number : TW-24012-S
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24025-S
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 1.5mm
        • Part Number : TW-24017-SS121
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 1.5mm
        • Part Number : TW-24017-T121
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 8 Step Block 1 - 8mm
        • Part Number : TW-24005-A
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: DSC (AWS & ASTM E-164)
        • Part Number : TW-24012-A
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: DSC (AWS & ASTM E-164)
        • Part Number : TW-24012-SS
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 5mm
        • Part Number : TW-24018-S125
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 8 Step Block 1 - 8mm
        • Part Number : TW-24005-SS
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 8 Step Block 1 - 8mm
        • Part Number : TW-24005-T
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: DSC (AWS & ASTM E-164)
        • Part Number : TW-24012-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 5mm
        • Part Number : TW-24018-A125
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 10 Step Block 0.1 - 1.0"
        • Part Number : TW-24003-A
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: DS (ANSI & AWS)
        • Part Number : TW-24013-S4340
        • Uncertified No Certification
      • Stainless Steel Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 5mm
        • Part Number : TW-24018-SS125
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: DS (ANSI & AWS)
        • Part Number : TW-24013-A
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: Angle Beam V-2 12.5mm & 5mm
        • Part Number : TW-24018-T125
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 10 Step Block 0.1 - 1.0"
        • Part Number : TW-24003-T
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: DS (ANSI & AWS)
        • Part Number : TW-24013-SS
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 10 Step Block 0.1 - 1.0"
        • Part Number : TW-24003-SS
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: IIW V-1 (Metric BS 2704)
        • Part Number : TW-24010-SS
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 10 Step Block 2 - 20mm
        • Part Number : TW-24006-S1018
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: DS (ANSI & AWS)
        • Part Number : TW-24013-T
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: IIW V-1 (Metric BS 2704)
        • Part Number : TW-24010-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 10 Step Block 2 - 20mm
        • Part Number : TW-24006-A
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: ANSI/AWS Resolution - RC
        • Part Number : TW-24019-S
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: ANSI/AWS Resolution - RC
        • Part Number : TW-24019-A
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
        • Part Number : TW-24008-S
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 10 Step Block 2 - 20mm
        • Part Number : TW-24006-SS
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 10 Step Block 2 - 20mm
        • Part Number : TW-24006-T
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: ANSI/AWS Resolution - RC
        • Part Number : TW-24019-SS
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
        • Part Number : TW-24008-A
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
        • Part Number : TW-24008-SS
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: 10 Step Block 2.5 - 25mm
        • Part Number : TW-24007-S1018
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: ANSI/AWS Resolution - RC
        • Part Number : TW-24019-T
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: SC (AWS & ASTM E-164)
        • Part Number : TW-24020-S
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
        • Part Number : TW-24008-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: 10 Step Block 2.5 - 25mm
        • Part Number : TW-24007-A
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: SC (AWS & ASTM E-164)
        • Part Number : TW-24020-A
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
        • Part Number : TW-24009-S
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: 10 Step Block 2.5 - 25mm
        • Part Number : TW-24007-SS
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
        • Part Number : TW-24009-A
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: 10 Step Block 2.5 - 25mm
        • Part Number : TW-24007-T
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: SC (AWS & ASTM E-164)
        • Part Number : TW-24020-SS
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
        • Part Number : TW-24009-SS
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: IIW V-1 (Metric BS 2704)
        • Part Number : TW-24010-S
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: SC (AWS & ASTM E-164)
        • Part Number : TW-24020-T
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: DC (AWS & ASTM E-164)
        • Part Number : TW-24021-S
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
        • Part Number : TW-24009-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: IIW V-1 (Metric BS 2704)
        • Part Number : TW-24010-A
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: DC (AWS & ASTM E-164)
        • Part Number : TW-24021-A
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: Mini IIW
        • Part Number : TW-24009-S-2
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: Mini IIW
        • Part Number : TW-24009-A-2
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: DC (AWS & ASTM E-164)
        • Part Number : TW-24021-SS
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: Mini IIW
        • Part Number : TW-24009-SS2
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: DC (AWS & ASTM E-164)
        • Part Number : TW-24021-T
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: IOW Beam Profile (BS2704)
        • Part Number : TW-24022-S
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: Mini IIW
        • Part Number : TW-24009-T-2
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 5mm
        • Part Number : TW-24015-S205
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: IOW Beam Profile (BS2704)
        • Part Number : TW-24022-A
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 5mm
        • Part Number : TW-24015-A205
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: IOW Beam Profile (BS2704)
        • Part Number : TW-24022-SS
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: IOW Beam Profile (BS2704)
        • Part Number : TW-24022-T
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 5mm
        • Part Number : TW-24015-SS205
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
        • Part Number : TW-24023-A
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 5mm
        • Part Number : TW-24015-T205
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 1.5mm
        • Part Number : TW-24016-S201
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
        • Part Number : TW-24023-SS
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
        • Part Number : TW-24023-T
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: Angle Beam V-2 20mm & 1.5mm
        • Part Number : TW-24016-A201
        • Certification : No Certificate
      • Steel Calibration Blocks
        • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24024-S
        • Certification : No Certificate
      • Aluminium Calibration Blocks
        • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24024-A
        • Certification : No Certificate
      • Stainless Steel Calibration Blocks
        • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24024-SS
        • Certification : No Certificate
      • Titanium Calibration Blocks
        • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
        • Part Number : TW-24024-T
        • Certification : No Certificate

Calibration Blocks

Calibration-blocks-intro_2

Elcometer NDT offer a comprehensive range of Calibration Blocks to suit a wide range of applications and standards.

Summary

Calibration Blocks

Calibration blocks are available as a set or individually, allowing users to select the most appropriate thickness for their application. Elcometer NDT calibration standards are manufactured from 4340 steel to a tolerance of ±1% of the nominal thickness and are supplied complete with calibration certificates.

Selecting the right calibration block
Selecting the correct calibration block for your application is essential to ensure accurate evaluation. The form, shape and material of the calibration block should be appropriate for the material being inspected. Any artificially induced flaw should closely resemble that of the actual flaw being tested for.

Technical Specification
Calibration Blocks
Steel Aluminium Stainless Steel Titanium Block Type
TW-24001-S1018 TW-24001-A TW-24001-SS TW-24001-T 4 Step Block 0.04 - 0.25"
TW-24004-S4340 TW-24004-A TW-24004-SS TW-24004-T 4 Step Block 0.25 - 1.00"
TW-24002-S4340 TW-24002-A TW-24002-SS TW-24002-T 5 Step Block 0.10 - 0.5"
TW-24005-S1018 TW-24005-A TW-24005-SS TW-24005-T 8 Step Block 1 - 8mm
TW-24003-S1018 TW-24003-A TW-24003-SS TW-24003-T 10 Step Block 0.1 - 1.0"
TW-24006-S1018 TW-24006-A TW-24006-SS TW-24006-T 10 Step Block 2 - 20mm
TW-24007-S1018 TW-24007-A TW-24007-SS TW-24007-T 10 Step Block 2.5 - 25mm
TW-24010-S TW-24010-A TW-24010-SS TW-24010-T IIW V-1 (Metric BS 2704)
TW-24008-S TW-24008-A TW-24008-SS TW-24008-T IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
TW-24009-S TW-24009-A TW-24009-SS TW-24009-T IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
TW-24009-S-2 TW-24009-A-2 TW-24009-SS-2 TW-24009-T-2 Mini IIW
TW-24015-S205 TW-24015-A205 TW-24015-SS205 TW-24015-T205 Angle Beam V-2 20mm & 5mm
TW-24016-S201 TW-24016-A201 TW-24016-SS201 TW-24016-T201 Angle Beam V-2 20mm & 1.5mm
TW-24017-S121 TW-24017-A121 TW-24017-SS121 TW-24017-T121 Angle Beam V-2 12.5mm & 1.5mm
TW-24018-S125 TW-24018-A125 TW-24018-SS125 TW-24018-T125 Angle Beam V-2 12.5mm & 5mm
TW-24014-S TW-24014-A TW-24014-SS TW-24014-T Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
TW-24012-S TW-24012-A TW-24012-SS TW-24012-T DSC (AWS & ASTM E-164)
TW-24013-S4340 TW-24013-A TW-24013-SS TW-24013-T DS (ANSI & AWS)
TW-24019-S TW-24019-A TW-24019-SS TW-24019-T ANSI/AWS Resolution - RC
TW-24020-S TW-24020-A TW-24020-SS TW-24020-T SC (AWS & ASTM E-164)
TW-24021-S TW-24021-A TW-24021-SS TW-24021-T DC (AWS & ASTM E-164)
TW-24022-S TW-24022-A TW-24022-SS TW-24022-T IOW Beam Profile (BS2704)
TW-24023-S TW-24023-A TW-24023-SS TW-24023-T NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
TW-24024-S TW-24024-A TW-24024-SS TW-24024-T ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
TW-24025-S TW-24025-A TW-24025-SS TW-24025-T ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
TW-24026-S TW-24026-A TW-24026-SS TW-24026-T ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
TW-24027-S TW-24027-A TW-24027-SS TW-24027-T ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
Steel TW-24001-S1018
Aluminium TW-24001-A
Stainless Steel TW-24001-SS
Titanium TW-24001-T
Block Type 4 Step Block 0.04 - 0.25"
Steel TW-24004-S4340
Aluminium TW-24004-A
Stainless Steel TW-24004-SS
Titanium TW-24004-T
Block Type 4 Step Block 0.25 - 1.00"
Steel TW-24002-S4340
Aluminium TW-24002-A
Stainless Steel TW-24002-SS
Titanium TW-24002-T
Block Type 5 Step Block 0.10 - 0.5"
Steel TW-24005-S1018
Aluminium TW-24005-A
Stainless Steel TW-24005-SS
Titanium TW-24005-T
Block Type 8 Step Block 1 - 8mm
Steel TW-24003-S1018
Aluminium TW-24003-A
Stainless Steel TW-24003-SS
Titanium TW-24003-T
Block Type 10 Step Block 0.1 - 1.0"
Steel TW-24006-S1018
Aluminium TW-24006-A
Stainless Steel TW-24006-SS
Titanium TW-24006-T
Block Type 10 Step Block 2 - 20mm
Steel TW-24007-S1018
Aluminium TW-24007-A
Stainless Steel TW-24007-SS
Titanium TW-24007-T
Block Type 10 Step Block 2.5 - 25mm
Steel TW-24010-S
Aluminium TW-24010-A
Stainless Steel TW-24010-SS
Titanium TW-24010-T
Block Type IIW V-1 (Metric BS 2704)
Steel TW-24008-S
Aluminium TW-24008-A
Stainless Steel TW-24008-SS
Titanium TW-24008-T
Block Type IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
Steel TW-24009-S
Aluminium TW-24009-A
Stainless Steel TW-24009-SS
Titanium TW-24009-T
Block Type IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
Steel TW-24009-S-2
Aluminium TW-24009-A-2
Stainless Steel TW-24009-SS-2
Titanium TW-24009-T-2
Block Type Mini IIW
Steel TW-24015-S205
Aluminium TW-24015-A205
Stainless Steel TW-24015-SS205
Titanium TW-24015-T205
Block Type Angle Beam V-2 20mm & 5mm
Steel TW-24016-S201
Aluminium TW-24016-A201
Stainless Steel TW-24016-SS201
Titanium TW-24016-T201
Block Type Angle Beam V-2 20mm & 1.5mm
Steel TW-24017-S121
Aluminium TW-24017-A121
Stainless Steel TW-24017-SS121
Titanium TW-24017-T121
Block Type Angle Beam V-2 12.5mm & 1.5mm
Steel TW-24018-S125
Aluminium TW-24018-A125
Stainless Steel TW-24018-SS125
Titanium TW-24018-T125
Block Type Angle Beam V-2 12.5mm & 5mm
Steel TW-24014-S
Aluminium TW-24014-A
Stainless Steel TW-24014-SS
Titanium TW-24014-T
Block Type Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
Steel TW-24012-S
Aluminium TW-24012-A
Stainless Steel TW-24012-SS
Titanium TW-24012-T
Block Type DSC (AWS & ASTM E-164)
Steel TW-24013-S4340
Aluminium TW-24013-A
Stainless Steel TW-24013-SS
Titanium TW-24013-T
Block Type DS (ANSI & AWS)
Steel TW-24019-S
Aluminium TW-24019-A
Stainless Steel TW-24019-SS
Titanium TW-24019-T
Block Type ANSI/AWS Resolution - RC
Steel TW-24020-S
Aluminium TW-24020-A
Stainless Steel TW-24020-SS
Titanium TW-24020-T
Block Type SC (AWS & ASTM E-164)
Steel TW-24021-S
Aluminium TW-24021-A
Stainless Steel TW-24021-SS
Titanium TW-24021-T
Block Type DC (AWS & ASTM E-164)
Steel TW-24022-S
Aluminium TW-24022-A
Stainless Steel TW-24022-SS
Titanium TW-24022-T
Block Type IOW Beam Profile (BS2704)
Steel TW-24023-S
Aluminium TW-24023-A
Stainless Steel TW-24023-SS
Titanium TW-24023-T
Block Type NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
Steel TW-24024-S
Aluminium TW-24024-A
Stainless Steel TW-24024-SS
Titanium TW-24024-T
Block Type ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
Steel TW-24025-S
Aluminium TW-24025-A
Stainless Steel TW-24025-SS
Titanium TW-24025-T
Block Type ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
Steel TW-24026-S
Aluminium TW-24026-A
Stainless Steel TW-24026-SS
Titanium TW-24026-T
Block Type ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
Steel TW-24027-S
Aluminium TW-24027-A
Stainless Steel TW-24027-SS
Titanium TW-24027-T
Block Type ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
Calibration Standard Sets
Part Number Description
T920CALSTD-SET1 Calibration Standard Set;
Nominal Thickness; 2-30mm (0.08-1.18")1
Comprising of nominal thickness; 2, 5, 10, 15, 20, 25 & 30mm (0.08, 0.20, 0.39, 0.59, 0.79, 0.98 & 1.18"), complete with holder and calibration certificate.
T920CALSTD-SET2 Calibration Standard Set;
Nominal Thickness; 40 - 100mm (1.57 - 3.94")1
Comprising of nominal thickness; 40, 50, 60, 70, 80, 90 & 100mm (1.57, 1.97, 2.36, 2.76, 3.15, 3.54 & 3.94"), complete with holder and calibration certificate
T920CALSTD-HLD Calibration Holder;
for thicknesses up to 100mm (3.94")
Individual Calibration Standards
Part Number Nominal Thickness (mm) Nominal Thickness (inches)1
T920CALSTD-2 2 0.078
T920CALSTD-5 5 0.196
T920CALSTD-10 10 0.393
T920CALSTD-15 15 0.590
T920CALSTD-20 20 0.787
T920CALSTD-25 25 0.984
T920CALSTD-30 30 1.181
T920CALSTD-40 40 1.574
T920CALSTD-50 50 1.966
T920CALSTD-60 60 2.362
T920CALSTD-70 70 2.755
T920CALSTD-80 80 3.149
T920CALSTD-90 90 3.543
T920CALSTD-100 100 3.937
1Imperial values for information purposes only. Calibration standards are manufactured and measured in millimetres.
Part Numbers
Calibration Blocks
  • Stainless Steel Calibration Blocks
    • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
    • Part Number : TW-24027-T
    • Certification : No Certificate
  • Calibration Standard Set
    • Part Number : T920CALSTD-SET1
    • Certification : No Certificate
  • Calibration Standard Set
    • Part Number : T920CALSTD-SET2
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
    • Part Number : TW-24027-SS
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
    • Part Number : TW-24027-A
    • Certification : No Certificate
  • Calibration Holder
    • Part Number : T920CALSTD-HLD
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 2
    • Nominal Thickness (inches)1: 0.078
    • Part Number : T920CALSTD-2
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: ASME-N-625 ref. plate (ASME 1275N B.P., Section 3, Nuclear Vessels)
    • Part Number : TW-24027-S
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 5
    • Nominal Thickness (inches)1: 0.196
    • Part Number : T920CALSTD-5
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24026-T
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24026-SS
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 10
    • Nominal Thickness (inches)1: 0.393
    • Part Number : T920CALSTD-10
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24026-A
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 15
    • Nominal Thickness (inches)1: 0.590
    • Part Number : T920CALSTD-15
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: ASME ref.block 2"-4" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24026-S
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 20
    • Nominal Thickness (inches)1: 0.787
    • Part Number : T920CALSTD-20
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 25
    • Nominal Thickness (inches)1: 0.984
    • Part Number : T920CALSTD-25
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 4 Step Block 0.04 - 0.25"
    • Part Number : TW-24001-A
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 30
    • Nominal Thickness (inches)1: 1.181
    • Part Number : T920CALSTD-30
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 4 Step Block 0.04 - 0.25"
    • Part Number : TW-24001-SS
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 40
    • Nominal Thickness (inches)1: 1.574
    • Part Number : T920CALSTD-40
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 50
    • Nominal Thickness (inches)1: 1.966
    • Part Number : T920CALSTD-50
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 4 Step Block 0.04 - 0.25"
    • Part Number : TW-24001-S1018
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 60
    • Nominal Thickness (inches)1: 2.362
    • Part Number : T920CALSTD-60
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 4 Step Block 0.04 - 0.25"
    • Part Number : TW-24001-T
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 4 Step Block 0.25 - 1.00"
    • Part Number : TW-24004-S4340
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 70
    • Nominal Thickness (inches)1: 2.755
    • Part Number : T920CALSTD-70
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 4 Step Block 0.25 - 1.00"
    • Part Number : TW-24004-A
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 80
    • Nominal Thickness (inches)1: 3.149
    • Part Number : T920CALSTD-80
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 90
    • Nominal Thickness (inches)1: 3.543
    • Part Number : T920CALSTD-90
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 4 Step Block 0.25 - 1.00"
    • Part Number : TW-24004-SS
    • Certification : No Certificate
  • Individual Calibration Standard
    • Nominal Thickness (mm): 100
    • Nominal Thickness (inches)1: 3.937
    • Part Number : T920CALSTD-100
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 4 Step Block 0.25 - 1.00"
    • Part Number : TW-24004-T
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 10 Step Block 0.1 - 1.0"
    • Part Number : TW-24003-S1018
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 5 Step Block 0.10 - 0.5"
    • Part Number : TW-24002-S4340
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
    • Part Number : TW-24023-S
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
    • Part Number : TW-24014-S
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 1.5mm
    • Part Number : TW-24016-SS201
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 5 Step Block 0.10 - 0.5"
    • Part Number : TW-24002-A
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24025-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
    • Part Number : TW-24014-A
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 1.5mm
    • Part Number : TW-24016-T201
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
    • Part Number : TW-24014-SS
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24025-SS
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 1.5mm
    • Part Number : TW-24017-S121
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 5 Step Block 0.10 - 0.5"
    • Part Number : TW-24002-SS
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 5 Step Block 0.10 - 0.5"
    • Part Number : TW-24002-T
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: Angle Beam ROMPAS (ASTM E-164 & USAFTO 33 B-1-1)
    • Part Number : TW-24014-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 1.5mm
    • Part Number : TW-24017-A121
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24025-A
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 8 Step Block 1 - 8mm
    • Part Number : TW-24005-S1018
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: DSC (AWS & ASTM E-164)
    • Part Number : TW-24012-S
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: ASME ref.block 1"-2" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24025-S
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 1.5mm
    • Part Number : TW-24017-SS121
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 1.5mm
    • Part Number : TW-24017-T121
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 8 Step Block 1 - 8mm
    • Part Number : TW-24005-A
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: DSC (AWS & ASTM E-164)
    • Part Number : TW-24012-A
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: DSC (AWS & ASTM E-164)
    • Part Number : TW-24012-SS
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 5mm
    • Part Number : TW-24018-S125
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 8 Step Block 1 - 8mm
    • Part Number : TW-24005-SS
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 8 Step Block 1 - 8mm
    • Part Number : TW-24005-T
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: DSC (AWS & ASTM E-164)
    • Part Number : TW-24012-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 5mm
    • Part Number : TW-24018-A125
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 10 Step Block 0.1 - 1.0"
    • Part Number : TW-24003-A
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: DS (ANSI & AWS)
    • Part Number : TW-24013-S4340
    • Uncertified No Certification
  • Stainless Steel Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 5mm
    • Part Number : TW-24018-SS125
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: DS (ANSI & AWS)
    • Part Number : TW-24013-A
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: Angle Beam V-2 12.5mm & 5mm
    • Part Number : TW-24018-T125
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 10 Step Block 0.1 - 1.0"
    • Part Number : TW-24003-T
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: DS (ANSI & AWS)
    • Part Number : TW-24013-SS
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 10 Step Block 0.1 - 1.0"
    • Part Number : TW-24003-SS
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: IIW V-1 (Metric BS 2704)
    • Part Number : TW-24010-SS
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 10 Step Block 2 - 20mm
    • Part Number : TW-24006-S1018
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: DS (ANSI & AWS)
    • Part Number : TW-24013-T
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: IIW V-1 (Metric BS 2704)
    • Part Number : TW-24010-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 10 Step Block 2 - 20mm
    • Part Number : TW-24006-A
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: ANSI/AWS Resolution - RC
    • Part Number : TW-24019-S
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: ANSI/AWS Resolution - RC
    • Part Number : TW-24019-A
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
    • Part Number : TW-24008-S
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 10 Step Block 2 - 20mm
    • Part Number : TW-24006-SS
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 10 Step Block 2 - 20mm
    • Part Number : TW-24006-T
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: ANSI/AWS Resolution - RC
    • Part Number : TW-24019-SS
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
    • Part Number : TW-24008-A
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
    • Part Number : TW-24008-SS
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: 10 Step Block 2.5 - 25mm
    • Part Number : TW-24007-S1018
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: ANSI/AWS Resolution - RC
    • Part Number : TW-24019-T
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: SC (AWS & ASTM E-164)
    • Part Number : TW-24020-S
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: IIW Type 1 (IIW, ASTM E-164 & MIL-STD-2154)
    • Part Number : TW-24008-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: 10 Step Block 2.5 - 25mm
    • Part Number : TW-24007-A
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: SC (AWS & ASTM E-164)
    • Part Number : TW-24020-A
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
    • Part Number : TW-24009-S
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: 10 Step Block 2.5 - 25mm
    • Part Number : TW-24007-SS
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
    • Part Number : TW-24009-A
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: 10 Step Block 2.5 - 25mm
    • Part Number : TW-24007-T
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: SC (AWS & ASTM E-164)
    • Part Number : TW-24020-SS
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
    • Part Number : TW-24009-SS
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: IIW V-1 (Metric BS 2704)
    • Part Number : TW-24010-S
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: SC (AWS & ASTM E-164)
    • Part Number : TW-24020-T
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: DC (AWS & ASTM E-164)
    • Part Number : TW-24021-S
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: IIW Type 2 (IIW & USAFTO 33 B1-1-1 (6-1-84)
    • Part Number : TW-24009-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: IIW V-1 (Metric BS 2704)
    • Part Number : TW-24010-A
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: DC (AWS & ASTM E-164)
    • Part Number : TW-24021-A
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: Mini IIW
    • Part Number : TW-24009-S-2
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: Mini IIW
    • Part Number : TW-24009-A-2
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: DC (AWS & ASTM E-164)
    • Part Number : TW-24021-SS
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: Mini IIW
    • Part Number : TW-24009-SS2
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: DC (AWS & ASTM E-164)
    • Part Number : TW-24021-T
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: IOW Beam Profile (BS2704)
    • Part Number : TW-24022-S
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: Mini IIW
    • Part Number : TW-24009-T-2
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 5mm
    • Part Number : TW-24015-S205
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: IOW Beam Profile (BS2704)
    • Part Number : TW-24022-A
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 5mm
    • Part Number : TW-24015-A205
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: IOW Beam Profile (BS2704)
    • Part Number : TW-24022-SS
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: IOW Beam Profile (BS2704)
    • Part Number : TW-24022-T
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 5mm
    • Part Number : TW-24015-SS205
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
    • Part Number : TW-24023-A
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 5mm
    • Part Number : TW-24015-T205
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 1.5mm
    • Part Number : TW-24016-S201
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
    • Part Number : TW-24023-SS
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: NAVSHIPS (NAVSEA T 9074-AS-GIB-010/271)
    • Part Number : TW-24023-T
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: Angle Beam V-2 20mm & 1.5mm
    • Part Number : TW-24016-A201
    • Certification : No Certificate
  • Steel Calibration Blocks
    • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24024-S
    • Certification : No Certificate
  • Aluminium Calibration Blocks
    • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24024-A
    • Certification : No Certificate
  • Stainless Steel Calibration Blocks
    • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24024-SS
    • Certification : No Certificate
  • Titanium Calibration Blocks
    • Block Type: ASME ref.block 0"-1" (ASME SEC V Article 23 T-534.2.1)
    • Part Number : TW-24024-T
    • Certification : No Certificate