ASTM  A53 Grade A&B A106 Grade AB&C A178 Grade AC&D A179 Low   Carbon Steel A192 Low  Carbon Steel A209 Grade T1 T1a &T1b A210 Grade A-1&C A213 T5 T11 T22&T91 A214 Low  Carbon Steel A333 Grade 1&6 A334 Grade 1&6 A335 Grade P5,P11,P22&P91 A500 Grade A,B,C&D A500A501A513 Low Carbon SteelA519A587 A795 API 5L 5CT AMS AMS-T-6736,4130 SAE J524 Low Carbon Steel J525 Low Carbon SteelDIN 2391,St30 Si St35,St45,St52 DiN2393,R St34-2 Si RSt37-2,St44-2,St52-3DiN2394,RSt34-2 Si RSt37-2,St44-2,St52-3 DiN17175, St35.8 St45.8,17Mn4 19Mn5 15Mo3 13CrMo44 13CrMo910 DIN2448/1629/1630 St37/St37.4 St44/St44.4 St52/St52.4  DIN2458/1626/1628 St37/St37.4 St44/St44.4 St52/St52.4 EN 10216 10217 1035 JIS G3441 JIS  G3444 JIS G3445 JIS G3452 JIS G3454JIS G3455JIS G3456 JIS G3458JIS G3460JIS G3461 JIS G3462JIS G3464JIS G3465JIS G3467 JIS G3473  BS1387 BS970 BS6323 BS3059