Japan · JIS
STY-R2 Class 1
JIS E5401:1989 — JIS E5401
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.6 | 0.75 | ||
| Cu | 0.3 | |||
| Mn | 0.5 | 0.9 | ||
| P | 0.045 | |||
| S | 0.05 | |||
| Si | 0.15 | 0.35 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| forgings, , rolled | ≤770 | ≤8 |