Low Carbon Steel
0.015
0.005
0.020
0.008
Medium Carbon Steel
0.013
0.005
0.020
0.008
High Carbon Steel
0.013
0.005
0.020
0.008
Cast Iron
0.016
0.006
0.025
0.010
Bronze
0.018
0.007
0.025
0.010
Aluminum
0.022
0.008
0.030
0.010