Grades available: BS 970 (Part 1) 535A99 ASTM A959 SS316 Commercial Mild Steel MS SAE J404 4140 ASTM A681 D2 SAE J404 8620 UNS C17200 BS 970 EN5A SAE J404 4340 AA 1100 CSA G40.21 400W AA 6061 IS 4367 16Mn5Cr4 BS 970 EN24 GOST 380 St3ps UNS C93200 ASTM A709 Grade HPS 70W