Quality:
ST 37 (S235JR), ST 44 (S275JR), ST 52 (S355JR), SAE 1020, SAE 1030, SAE 1040, SAE 1050, SAE 4140, Ck 45, Ck 55, Ck 60, 55Cr3
Dimension Tolerance:
DIN, EN, ASTM, JIS standards