| 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 |