Grades available: 1018 1055 Grade 4 4140 S40C SS304 070M55 BH13 4135 12L14 8615 EN8 20CrMo4 8617 S80C 50W Class 4 SKD11 1020 8620 E250A EN5 SM45C 1040 X38CrMoV5-1 40HFA C45 42CD4 EN8D 40XH 3316 SUS310S 15CrMo5