Category

Grades

Sizes

Standard

Carbon structure steel

Q195, Q215, Q235, Q275

16mm-250mm

GB/T700-2006

Low alloy high strength structure steel

Q295, Q345, Q390, Q420,Q460

16mm-250mm

GB/T1591-2008

Prime Carbon structure steel

10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45

16mm-250mm

GB/T699-1999

Alloy structure steel

30Mn2,40Mn2,27SiMn,42Crmo,20Cr,40Cr,20CrMo,35CrMo,20CrMnTi,

30CrMnTi,20MnVB,20MnTiB,20CrNiMo,Q345B,35MnBM,

40MnB,36Mn2V,45MnV

16mm-250mm

GB/T3077-1999

Spring Steel

65Mn, 60Si2Mn, 50CrVA

16mm-250mm

GB/T1222-84

Bearing Steel

GCr15, GCr15GD,55SiMoV

16mm-250mm

GB/T18254-2002

Structural steels subject to end-quench hardenability requirements

20CrMnTi, 30CrMnTi,20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn,40Mn2H,20CrNiMo,40Mn2,q345b,35MnBM,40MnB,45MnV.

16mm-250mm

GB/T5216-2004

Oil wells structural steel

37Mn5, 36Mn2V

16mm-250mm

Q/LYS248-2007

Marine anchor chain steel

CM490, CM690, M30Mn2

16mm-250mm

YB/T66-1987GB/T18669-2002