AFNOR XC18S Air 9160/C
Grade 20 is a simple structural carbon steel used in the production of low-load machine parts and structures with good weldability, not requiring high strength properties in a heat-treated state
Chemical composition(mass fraction)(wt.%)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.15 | 0.22 | ||
| Si | 0.25 | |||
| Mn | 0.45 | 0.65 | ||
| P | 0.035 | |||
| S | 0.035 |
