... , EN10305-2, EN10210, EN10216, BS3059, BS3601, BS3602, BS3606 etc. Carbon steel grade : SAE1010, SAE1020, SAE1035, SAE1045, ST35, ST35.8, ST37, ST37 ... , ST45.8, ST52, ST52-3.E195, E235, E355 etc. Alloy Steel Grade: 20G 37Mn5 25Mn2 30Mn2 25Mn2V 33Mn2V 36Mn2V 30CrMo 15CrMoG ...