ategory

Grades

Sizes

Standard

Carbon structure steel

Q195, Q215, Q235, Q275

16mm-600mm

GB/T700-2006

Low alloy high strength structure steel

Q295, Q345, Q390, Q420, Q460

16mm-600mm

GB/T1591-2008

Prime Carbon structure steel

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

16mm-600mm

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-600mm

GB/T3077-1999

Spring Steel

65Mn, 60Si2Mn, 50CrVA

16mm-600mm

GB/T1222-84

Bearing Steel

GCr15, GCr15GD,55SiMoV

16mm-600mm

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-600mm

GB/T5216-2004

Oil wells structural steel

37Mn5, 36Mn2V

16mm-600mm

Q/LYS248-2007

Marine anchor chain steel

CM490, CM690, M30Mn2

16mm-600mm

 YB/T66-1987

GB/T18669-2002