英国 · B.S.
925 A 60
BS 970-5 — Specification for wrought steels for mechanical and allied engineering purposes. Carbon and alloy spring steels for the manufacture of hot formed springs.
化学成分
| 元素 | min | max | 相似 | 备注 |
|---|---|---|---|---|
| C | 0.55 | 0.65 | ||
| Cr | 0.2 | 0.4 | ||
| Mn | 0.7 | 1 | ||
| Mo | 0.2 | 0.3 | ||
| Ni | 0.4 | |||
| P | 0.04 | |||
| S | 0.04 | |||
| Si | 1.7 | 2.1 |