|
铁种 |
球墨铸铁用生铁 |
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| 牌号 |
Q10 |
Q12 |
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| |
C |
≥3.40 |
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| 化学成分 |
Si |
0.50~1.00 |
1.00~1.40 |
|
| Ti |
1档 |
≤0.050 |
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| 2档 |
>0.050~0.080 |
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|
Mn |
1组 |
≤0.20 |
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| 2组 |
>0.20~0.50 |
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| 3组 |
>0.50~0.80 |
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|
P |
1级 |
≤0.050 |
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| 2级 |
>0.050~0.060 |
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| 3级 |
>0.060~0.080 |
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|
S |
1类 |
≤0.020 |
||
| 2类 |
>0.020~0.030 |
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| 3类 |
>0.030~0.040 |
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| 4类 |
≤0.045 |
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