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質(zhì)量標準
鑄造用生鐵國家標準
GB/T718-2024
| 牌號 | 常規(guī)元素% | ||||||||||||
| C | Si | Ti | Mn | P | S | ||||||||
| C1 | ≥3.30 | ≤0.40 | ≤0.010 | ≤0.050 | ≤0.015 | ≤0.015 | |||||||
| C2 | ≥3.60 | ≤0.70 | ≤0.030 | ≤0.100 | ≤0.030 | ≤0.020 | |||||||
| C3 | ≥3.80 | ≤0.70 | ≤0.032 | ≤0.120 | ≤0.030 | ≤0.020 | |||||||
| 一檔 | 二檔 | 三檔 | 一組 | 二組 | 一級 | 二級 | 三級 | 一類 | 二類 | ||||
| Q8 | ≥3.80 | ＞0.50-0.80 | ≤0.040 | ＞0.040-0.050 | ＞0.050-0.080 | ≤0.20 | ＞0.20-0.50 | ≤0.040 | ＞0.040-0.050 | ＞0.050-0.080 | ≤0.020 | ＞0.020-0.030 | |
| Q10 | ＞0.80-1.00 | ||||||||||||
| Q12 | ＞1.00-1.40 | ||||||||||||
球墨鑄鐵用生鐵內(nèi)控標準
參鐵集團
| 牌號 | 常規(guī)元素% | |||||||||
| C | Si | Ti | Mn | P | S | |||||
| 一檔 | 二檔 | 一組 | 二組 | 1級 | 2級 | 1類 | 2類 | |||
| 高純 | ≥4.0 | ＜0.50 | ≤0.025 | ＞0.025-0.030 | ≤0.08 | ＞0.08-0.100 | ≤0.025 | ＞0.025-0.030 | ≤0.02 | ＞0.02-0.025 |
| ＜0.70 | ＜0.030 | ＜0.100 | ＜0.030 | ＜0.020 | ＜0.025 | |||||
| Q10 | ≥4.0 | 0.5-1.00 | ＜0.035 | ＜0.050 | ＜0.120 | ≤0.030 | ≤0.035 | ＜0.020 | ＜0.030 | |
| Q12 | ＞1.00-1.40 | ＜0.050 | ≤0.035 | ≤0.040 | ||||||
