石油套管 石油套管
st52相当于Q345B,或者16mn
化学成分如下: Chemical composition 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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