日本JIS標準冷鐓用碳鋼的鋼號與化學成分:
| 鋼號與化學成分（質量分數）（%） | |||||||||
| 鋼號 | C | Si | Mn | P≤ | S≤ | Al | |||
| SWRCH6R | ≤0.08 | - | ≤0.60 | 0.04 | 0.04 | - | |||
| SWRCH8R | ≤0.10 | - | ≤0.60 | 0.04 | 0.04 | - | |||
| SWRCH10R | 0.08-0.13 | - | 0.60-0.60 | 0.04 | 0.04 | - | |||
| SWRCH12R | 0.10-0.15 | - | 0.60-0.60 | 0.04 | 0.04 | - | |||
| SWRCH15R | 0.13-0.18 | - | 0.60-0.60 | 0.04 | 0.04 | - | |||
| SWRCH17R | 0.15-0.20 | - | 0.60-0.60 | 0.04 | 0.04 | - | |||
| SWRCH6A | ≤0.08 | ≤0.10 | ≤0.60 | 0.03 | 0.035 | ≤0.02 | |||
| SWRCH8A | ≤0.10 | ≤0.10 | ≤0.60 | 0.03 | 0.035 | ≤0.02 | |||
| SWRCH10A | 0.08-0.13 | ≤0.10 | 0.60-0.60 | 0.03 | 0.035 | ≤0.02 | |||
| SWRCH12A | 0.10-0.15 | ≤0.10 | 0.60-0.60 | 0.03 | 0.035 | ≤0.02 | |||
| SWRCH15A | 0.13-0.18 | ≤0.10 | 0.60-0.60 | 0.03 | 0.035 | ≤0.02 | |||
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