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MX-5 Ultrasonic Thickness Gauge
33
APPENDIX C
Sound Velocities of some Common Materials
Material sound velocity
in/us
m/s
Aluminum
0.250
6350
Bismuth 0.086 2184
Brass
0.173
4394
Cadmium 0.109 2769
Cast Iron
0.180
(apprx)
4572
Constantan 0.206 5232
Copper
0.184
4674
Epoxy resin
0.100
(apprx)
2540
German silver 0.187 4750
Glass, crown
0.223
5664
Glass,flint 0.168 4267
Gold
0.128
3251
Ice 0.157 3988
Iron
0.232
5893
Lead 0.085 2159
Magnesium
0.228
5791
Mercury 0.057 1448
Nickel 0.222 5639
Nylon
0.102
(apprx)
2591
Paraffin 0.087 2210
Platinum
0.156
3962
Plexiglass 0.106 2692
Polystyrene
0.092
2337
Porcelain 0.230 (apprx) 5842
PVC
0.094
2388
Quartz glass 0.222 5639
Rubber, vulcanized
0.091
2311
Silver
0.142
3607
Steel, common 0.233 5918
Steel, stainless
0.223
5664
Stellite 0.275 (apprx) 6985
Teflon
0.056
1422
Tin 0.131 3327
Titanium
0.240
6096
Tungsten 0.210 5334
Zinc
0.166
4216
Water 0.058 1473