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    27simn无缝钢管
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    27simn无缝钢管

    发布时间:2018-03-09  

      27simn无缝钢管,即27硅锰无缝钢管,是无缝钢管的其中一种材质,含碳量在0.24—0.32%之间,simn单列是因为是因为五大元素(碳C,硅Si,锰Mn,磷P,硫S)中,硅锰的含量高约为1.10—1.40%。 27simn无缝管适用于电厂、锅炉厂、化工,车、轮船的配件等。

    27simn无缝钢管

      钢管简介

      27SiMn,液压支柱管。

      【主要特性】

      这种钢的性能优于30Mn2钢,淬透性较高,可切削性良好,冷变形塑性及焊接性较好;另外钢在热处理时韧性减低不多,但却有较好的强度和耐磨性,特别是水淬时仍有较好的韧性;但是此钢对白点敏感性较大,热处理时有回火脆性倾向及过热敏感性。

      【应用举例】

      这种钢主要在调质状态下使用,用于制造要求高韧性和耐磨性的热冲压件;也可在正火或热轧供应状态下使用。

      力学性能】

      27simn无缝钢管力学性能

      抗拉强度σb (MPa):≥980

      屈服强度σs (MPa):≥835

      伸长率δ5/(%):≥12

      断面收缩率ψ/(%):≥40

      冲击吸收功(冲击值)(Aku2/J):≥39

    27simn无缝钢管现货


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