Main steel grade Carries out the standard
A,B,D,E（Z15.Z25.Z35)
AH32-FH32(Z15.Z25.Z35)
AH36-FH36(Z15.Z25.Z35)
API SPEC 2H Gr.42.Gr.50 A131(GrA,B,D,E,CS,AH32,AH36,DH32,DH36,EH32,EH36, FH32,FH36,AH40,DH40,EH40,FH40 2H(Gr42,50) 2W(TMCP)(Gr42,50,50T)

Main steel grade Carries out the standard
20g,16Mng，15CrMog P235GH,P355GH, P395GH
12CrlMoVg,19Mng,
22Mng,13MnNiCrMoNbg
20R,16MnR,15MnVR ,12MnNiVR 3MnNiMoNbR
15MnNbR,15MnVNR
16MnDR,09MnNiDR,15MnNiDR
12Cr2Mo1R,14Cr1MoR
07MnCrMoVR,07MnNiCrMoVDR 20MnMoNi55,
SB410,SB450,SB480
SPV235,SPV315,SPV355
SPV410,SPV450,SPV490
SGV410,SGV450,SGV480
SBV1A,SBV1B,SBV2,SBV3
SEV245,SEV295,SEV345 SA387Gr11CL2/CL1(HIC)，SA387Gr22CL2, UHI, 10CrMo9-10,15Mo3 16Mo3,
13CrMo44,18MnMo4-5,19Mn6 , 20MnMoNi4-5,15NiCuMoNb5-6-4 17Mn4,19Mn6
BHW35
13MnNiMo54
1Cr0.5Mo,2.25Cr1Mo
1.25Cr0.5Mo