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| 德标ST52无缝管是什么材质|st52是什么钢 | ||
| 双击自动滚屏 | 发布者：管理员 发布时间：2010/11/8 阅读：474次 【字体：大 中 小】 | |
石油套管 石油套管 st52相当于Q345B，或者16mn 化学成分如下： C <=0.20 Si <=0.55 Mn <=1.60 P <=0.030 S <=0.030 Cu <=0.55 N <=0.012 Material Number 1.0553 Steel group Non alloy quality steels: Steels with average C > 0,25 < 0,55 % or Rm > 500 < 700 N/mm² Symbol S355J0; St 52-3 U † Standards DIN EN 10025-2 (04/2005) Hot rolled products of structural steels. Technical delivery conditions for non-alloy structural steels. International conformity EN 10025-2 (2004) Replaces DIN EN 10025-2 (02/2005); DIN EN 10025 (03/1994); DIN EN 10113-2 (04/1993) Way of deoxydation: rimmed is not permitted With special cold workability: 1.0554; S355J0C Former designation DIN 17100: St 52-3 U Former designation of steels with special working properties, Cold flanging: 1.0573; QSt 52-3 U Cold drawing: 1.0597; ZSt 52-3 U Cold roll forming: 1.0575; KSt 52-3 U | ||
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