Appendix: Sound Velocities of Common Materrials
Material
Sound Velocity
Inch/µS
M/s
Aluminum
0.250
6300
Alumina Oxide
0.390
9900
Beryllium
0.510
12900
Boron Carbide
0.430
11000
Brass
0.170
4300
Cadmium
0.110
2800
Copper
0.180
4700
Glass(crown)
0.210
5300
Glycerin
0.075
1900
Gold
0.130
3200
Ice
0.160
4000
Inconel
0.220
5700
Iron
0.230
5900
Iron (cast)
0.180
4600
Lead
0.085
2200
Magnesium
0.230
5800
Mercury
0.057
1400
Molybdenum
0.250
6300
Monel
0.210
5400
Neoprene
0.063
1600
Nickel
0.220
5600
Nylon, 6.6
0.100
2600
Oil (SAE 30)
0.067
1700
Platinum
0.130
3300
Plexiglass
0.110
1700
Polyethylene
0.070
1900
Polystyrene
0.0930
2400
Polyurethane
0.0700
1900
Quartz
0.230
5800
Rubber, Butyl
0.070
1800
Silver
0.140
3600
Steel, Mild
0.233
5900
Steel, Stainless
0.230
5800
Teflon
0.060
1400
Tin
0.130
3300
Titanium
0.240
6100
Tungsten
0.200
5200
Uranium
0.130
3400
Zinc
0.170
4200
Note: The above table is for reference only. For actual sound velocity
calibration, refer to section chapter 3.1
27