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Speed of Sound Through Materials

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Product Description


Elcometer Ultrasonic Thickness Gauges can be calibrated by the user for the appropriate material in two ways:

  • Set the calibration to the thickness of the known standard of the same material
  • Set the frequency calibration to the appropriate value using the velocity chart below:

The Elcometer 204 is pre-calibrated for Steel only.

 

Material
 km/sec
 in/msec
 Material
 km/sec
 in/msec
Air
 0.33 0.013 Neoprene
 1.60 0.063
Aluminium (2024-T4)
 6.38 0.251 Nickel
 5.64 0.222
Beryllium
 12.88 0.507 Nylon
 2.69 0.106
Boron Carbide
 10.92 0.430 Platinum
 3.69 0.156
Brass
 4.39 0.173 Plexiglass
 2.69 0.106
Cadmium
 2.77 0.109 Polystyrene
 2.34 0.092
Copper
 4.65 0.183 Polyurethane
 1.78 0.070
Glass (Plate)
 5.77 0.227 PVC
 2.39 0.094
Glycerine
 1.93 0.076 Quartz
 5.74 0.226
Gold
 3.25 0.128 Silver
 3.61 0.142
Inconel
 5.82 0.229 Steel (4340)
 5.84 0.230
Iron
 5.89 0.232 Steel (303 Stainless)
 5.66 0.223
Iron, Cast
 4.55 0.179 Teflon
 1.52 0.060
Lead
 2.16 0.085 Tin
 3.33 0.131
Magnesium
 5.84 0.230 Titanium
 6.10 0.240
Mercury
 1.45 0.057 Tungsten
 5.18 0.204
Molybdenum
 6.25 0.246 Uranium
 3.38 0.133
Monel
 5.36 0.211 Water
 1.47 0.058
Motor Oil (SAE 30)
 1.75 0.069 Zinc
 4.32 0.170
Speed of Sound Through Materials
Speed of Sound Through Materials
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