27SiMn液压支柱管是SiMn合金结构钢,Si/Mn含量为1.10%-1.40%,轧制态抗拉强度≥780MPa,适用于煤矿全 mechanized 支撑的30-40MPa高压主支柱(例如,全 mechanized 开采支架、端部支撑支柱的主支柱),能够承受频繁的冲击和高压流体,比碳钢更可靠。

27SiMn液压支柱管是SiMn合金结构钢,Si/Mn含量为1.10%-1.40%,轧制态抗拉强度≥780MPa,适用于煤矿全 mechanized 支撑的30-40MPa高压主支柱(例如,全 mechanized 开采支架、端部支撑支柱的主支柱),能够承受频繁的冲击和高压流体,比碳钢更可靠。
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| 年级 | 输入:C | 是 | 锰 | 铬 | 尼 | 莫 | 铜 | 铌 | 回复 | 输入:P | 输入:S |
| 27硅锰 | 0.24~0.32 | 1.10~1.40 | 1.10~1.40 | ≤0.30 | ≤0.30 | ≤0.10 | ≤0.20 | 输入: __ | 输入: __ | ≤0.025 | ≤0.015 |
| 年级 | 抗拉强度 Rm | 屈服强度 YS | 伸长率A(%) |
| 27硅锰 | ≥980兆帕 | ≥835兆帕 | ≥12 |


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