标准号 | 化学成分(%) | ||||
| C | Mn | P | S | Pb |
SUM 11 | 0.08~0.13 | 0.30~0.60 | 0.040 max. | 0.08~0.13 | - |
SUM 12 | 0.08~0.13 | 0.60~0.90 | 0.040 max. | 0.08~0.13 | - |
SUM 21 | 0.13 max. | 0.70~1.00 | 0.07~0.12 | 0.08~0.13 | - |
SUM 22 | 0.13 max. | 0.70~1.00 | 0.07~0.12 | 0.08~0.13 | - |
SUM 23 | 0.09 max. | 0.75~1.05 | 0.04~0.09 | 0.08~0.13 | - |