Grades available: EN8 AISI 4140 EN19 SAE1018 H13 Cr12MoV C45 SAE4340 1.2379 D2 KNL MS EN8D SAE4140 D2 EN24 EN31 SAE1042 EN36 EN1A EN47 IS2062 E350A 20MnCr5 42CrMo4 D3 IS2062 E250A SAE52100