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牌號 | 化學成分a(熔煉分析) % (質量分數) | ||||
C | Mn | P | S | Alt | |
SPCC | ≤0.15 | ≤0.60 | ≤0.10 | ≤0.025 | - |
SPCD | ≤0.10 | ≤0.45 | ≤0.030 | ≤0.025 | ≥0.015 |
SPCE | ≤0.08 | ≤0.40 | ≤0.025 | ≤0.020 | ≥0.015 |
SPCF(SPCEN) | ≤0.008 | ≤0.30 | ≤0.020 | ≤0.020 | ≥0.015 |
SPCG | ≤0.006 | ≤0.25 | ≤0.020 | ≤0.020 | ≥0.015 |
a 允許添加其它合金元素。 |