Wear Coefficients
The table below provides wear coefficient values that are used in the Lambda b calculation for some common materials.
Material
Wear Coefficient
4130 Alloy Steel (piston)
0.0218
4130 Alloy Sell (cylinder)
0.0221
17-4 PH Stainless Steel (piston)
0.0262
17-4 PH Stainless Steel (cylinder)
0.0262
9310 Alloy Steel (piston)
0.0272
9310 Alloy Steel (cylinder)
0.0272