• Q345R steel
  • 16Mo3 steel
  • A283GradeC steel
  • A516Grade70 steel
  • A572Grade50 steel
  • cortenA steel

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■ Overview. GB/T1591 Q390 contains five different steel grades as Q390A,Q390B,Q390C,Q390D and Q390E.Structural steel Q390D shall be done impacting test at low temperature minus 20 degree centigrade.Normalised heat treatment suggested to be done for low alloy steel plate Q390D in

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GB/T 1591 2008 Translated English of Chinese Standard

This standard is the revision to GB/T 1591 1994 "High Strength Low Alloy Structural Steels", with reference to EN 100252004 "Structural Steel Hot Rolled Products". This standard replaces GB/T 1591 1994 "High Strength Low Alloy Structural Steels".

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