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Friction Coefficients: Steel
Steel Castor oil to Teflon lubricated
Static and kinetic friction coefficients between material pairs under various surface conditions
| material 1 | material 2 condition | material 2 | mu kinetic max (dimensionless) | mu kinetic min (dimensionless) | mu static max (dimensionless) | mu static min (dimensionless) | surface condition |
|---|---|---|---|---|---|---|---|
| Steel | Steel Castor oil | Steel | 0.081 | 0.081 | 0.15 | 0.15 | Castor oil |
| Steel | Steel Clean and Dry | Steel | 0.42 | 0.42 | 0.8 | 0.8 | Clean and Dry |
| Steel | Steel Grease | Steel | — | — | 0.16 | 0.16 | Grease |
| Steel | Steel graphite in petrolatum or oil fastener threads | Steel | — | — | 0.07 | 0.07 | graphite in petrolatum or oil fastener threads |
| Steel | Steel machine oil fastener threads | Steel | — | — | 0.15 | 0.15 | machine oil fastener threads |
| Steel | Steel molybdenum disulfide grease fastener threads | Steel | — | — | 0.11 | 0.11 | molybdenum disulfide grease fastener threads |
| Steel | Teflon clean | Teflon | — | — | 0.04 | 0.04 | Clean and Dry |
| Steel | Teflon lubricated | Teflon | — | — | 0.04 | 0.04 | Lubricated |
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