- 河铸重工
球墨铸铁件产品具体牌号与元素成分表
球墨铸铁化学成分：
球墨铸铁的化学成分（供参考）
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牌号及种类 |
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化 学 成 分（质 量 分 数 %） |
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C |
Si |
Mn |
P |
S |
Mg |
RE |
Cu |
Mo |
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QT900-2 |
孕育前 |
3.5-3.7 |
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≤0.50 |
≤0.08≤0.025 |
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孕育后 |
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2.7-3.0 |
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0.03-0.05 |
0.025-0.045 |
0.5-0.7 |
0.15-0.25 |
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QT800-2 |
孕育前 |
3.7-4.0 |
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≤0.50 |
≤0.07 ≤0.03 |
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孕育后 |
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2.5 |
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0.82 |
0.39 |
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QT700-2 |
孕育前 |
3.7-4.0 |
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0.5-0.8 |
≤0.08 ≤0.02 |
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孕育后 |
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2.3-2.6 |
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0.035-0.0650.035-0.065 |
0.40-0.80 |
0.15-0.40 |
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QT600-3 |
孕育前 |
3.6-3.8 |
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0.5-0.7 |
≤0.08≤0.025 |
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孕育后 |
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2.0-2.4 |
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0.035-0.05 0.025-0.045 |
0.50-0.75 |
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QT500-7 |
孕育前 |
3.6-3.8 |
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≤0.60 |
≤0.08≤0.025 |
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孕育后 |
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2.5-2.9 |
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0.03-0.05 0.03-0.05 |
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QT450-10 |
孕育前 |
3.4-3.9 |
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≤0.50 |
≤0.07 ≤0.03 |
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孕育后 |
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2.2-2.8 |
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0.03-0.06 0.02-0.04 |
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QT400-15 |
孕育前 |
3.5-3.9 |
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≤0.50 |
≤0.07 ≤0.02 |
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孕育后 |
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2.5-2.9 |
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0.04-0.06 0.03-0.05 |
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QT400-18 |
孕育前 |
3.6-3.9 |
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≤0.50 |
≤0.08≤0.025 |
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孕育后 |
3.6-3.9 |
2.2-2.8 |
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0.04-0.06 |
0.03-0.05 |
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