France · AFNOR NF
48 CrMo 4
NF A35-565 — Iron and steel. Steels for bearings. Types.
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.46 | 0.52 | ||
| Cr | 0.9 | 1.2 | ||
| Cu | 0.3 | |||
| Mn | 0.5 | 0.8 | ||
| Mo | 0.15 | 0.3 | ||
| P | 0.025 | |||
| S | 0.035 | |||
| Si | 0.4 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, wire, Quenched, HR, steel bars | Steel tube 55.00 |