France · AFNOR NF
22 9 3 N L
NF EN 1600
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.04 | |||
| Cr | 21 | 24 | ||
| Cu | 0.75 | |||
| Fe | Bal | |||
| Mn | 2.5 | |||
| Mo | 2.5 | 4 | ||
| N | 0.08 | 0.2 | ||
| Ni | 7.5 | 10.5 | ||
| P | 0.03 | |||
| P+S | 0.05 | |||
| S | 0.025 | |||
| Si | 1.2 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| steel bars, welded condition | ≥450 | ≥550 | ≥20 |