Alloy Steel SAE/AISI 4140 | Saaj Steel
AMS 6381 ASTM A194 (7, 7M) ASTM A513 ASTM A829 AMS 6382 ASTM A29 (4140) ASTM A513 (4140) SAE J1397 (4140) AMS 6390 ASTM A320 (L7, L7M, L7D) ASTM A519 (4140) SAE J404 (4140) AMS 6395 ASTM A322 (4140) ASTM A646 (4140) SAE J412 ......