| SAE | SAE AMS6267 | Steel Bars, Forgings, and Mechanical Tubing and Forging Stock 1.2Cr - 3.25Ni - 0.12Mo (0.07 - 0.13C) (9310) Electroslag Remelted or Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6495 | Steel Bars, Forgings, Mechanical Tubing, and Forging Stock, 1.0Cr - 2.50Ni - 2.0Mo - 1.10Si (0.10 - 0.20C), Premium Aircraft-Quality, Electroslag Remelted or Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6493 | Steel Bars, Forgings, and Tubing, 1.0Cr - 3.25Ni - 0.40Mo (0.17 - 0.22C), Electroslag Remelted or Consumable Electrode Vacuum Remelted, Premium Aircraft-Quality |  | 
              
              
                | SAE | SAE AMS6497 | Steel Bars, Forgings, and Tubing, Nitriding, 1.4Cr - 1.2Mo - 0.3V (0.29 - 0.36C), Electroslag Remelted or Consumable Electrode Vacuum Remelted, Premium Aircraft-Quality for Bearing Applications |  | 
              
              
                | SAE | SAE AMS6265 | Steel, Bars, Forgings, Mechanical Tubing and Forging Stock, 1.2Cr - 3.25Ni - 0.12Mo (0.07 - 0.13C) (9310), Vacuum Consumable Electrode Remelted |  | 
              
              
                | SAE | SAE AMS6414 | Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340), Vacuum Consumable Electrode Remelted |  | 
              
              
                | SAE | SAE AMS6548 | Steel Bars, Forgings, and Tubing, 1.0Cr - 3.2Ni - 0.2Mo (0.12 - 0.17C), Premium Aircraft-Quality, Electroslag Remelted or Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6431 | Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock 1.05Cr - 0.55Ni - 1.0Mo - 0.11V (0.45 - 0.50C) (D6AC) Vacuum Consumable Electrode Remelted |  | 
              
              
                | SAE | SAE AMS6340 | Steel Bars, Forgings, Mechanical Tubing and Forging Stock 0.88Cr - 1.8Ni - 0.42Mo - 0.08V (0.28 - 0.33C) (4330 Mod) Premium Aircraft Quality, Consumable Electrode Vacuum Remelted_x000D_ |  | 
              
              
                | SAE | SAE AMS6257 | Steel Bars, Forgings, Forging Stock, and Mechanical Tubing, 1.6Si - 0.82Cr - 1.8Ni - 0.40Mo - 0.08V (0.40 - 0.44C), Consumable Electrode Vacuum Remelted, Normalized and Tempered_x000D_ |  | 
              
              
                | SAE | SAE AMS5936 | Steel, Corrosion-Resistant, Bars, Wire, and Forgings, 12Cr - 11Ni - 1.7Ti - 1Mo, Vacuum Induction Plus Vacuum Consumable Electrode Remelted, Solution Heat Treated, Precipitation Hardenable |  | 
              
              
                | SAE | SAE AMS6471 | Steel, Nitriding, Bars, Forgings, Mechanical Tubing, and Stock for Forging, 1.6Cr - 0.35Mo - 1.13Al (0.38 - 0.43C) (135 Mod), Premium Aircraft Quality, Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6526 | Steel, Bars, Forgings, Mechanical Tubing, Rings, and Stock for Forgings and Rings, 1.0Cr - 7.5Ni - 4.5Co - 1.0Mo - 0.09V (0.29 - 0.34C), Consumable Electrode Vacuum Remelted, Annealed |  | 
              
              
                | SAE | SAE AMS6429 | Steel Bars, Forgings, Mechanical Tubing, Rings and Stock for Forgings and Rings, 0.78Cr - 1.8Ni - 0.35Mo - 0.20V (0.33 - 0.38C) (4335 Mod) Premium Aircraft Quality Consumable Electrode Vacuum Remelted_x000D_ |  | 
              
              
                | SAE | SAE AMS6408 | Steel, Hotwork Tool, Bars, and Forgings and Forging Stock, 5.25Cr - 1.5Mo - 1.0V (0.35-0.45C) (H-13), Electroslag Remelted (ESR) or Consumable Electrode Vacuum Arc Remelted (VAR), Annealed |  | 
              
              
                | BSI | BS S 152 | Specification for chromium-cobalt-molybdenum-vanadium-niobium heat-resisting steel billets, bars, forgings and parts (consumable electrode remelted) (1000-1140 MPa) (Cr 10.5, Co 6, Mo 0.8, V 0.2, Nb 0.3) |  | 
              
              
                | SAE | SAE AMS5933 | Steel, Corrosion Resistant Bars and Forgings, 12.5Cr - 1.0Ni - 15.5Co - 2.0Mo, Vacuum Induction Plus, Vacuum Consumable Electrode Remelted |  | 
              
              
                | BSI | BS 2S 136 | Specification for 1% carbon-chromium steel (vacuum arc remelted) billets, bars, forgings and parts (limiting ruling section 25 mm) |  | 
              
              
                | SAE | SAE AMS6444 | Steel, Bars, Forgings, and Tubing, 1.45Cr (0.93 - 1.05C) (SAE 52100), Premium Aircraft-Quality, Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6276 | Steel, Bars, Forgings, and Tubing, 0.50Cr - 0.55Ni - 0.20Mo (0.18 - 0.23C) (SAE 8620), Consumable Electrode Vacuum Remelted_x000D_ |  | 
              
              
                | SAE | SAE AMS6551 | Steel Bars, Forgings and Tubing, 1.75Cr - 4.0Ni - 0.5Mo - (0.35 - 0.40C), Premium Aircraft Quality, Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6419 | Steel, Bars, Forgings, and Tubing, 1.6Si - 0.82Cr - 1.8Ni - 0.40Mo - 0.08V (0.40 - 0.45C), Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6417 | Steel, Bars, Forgings, and Tubing, 1.6Si - 0.82Cr - 1.8Ni - 0.40Mo - 0.08V (0.38 - 0.43C), Consumable Electrode Vacuum Remelted |  | 
              
              
                | SAE | SAE AMS6512 | Steel, Maraging, Bars, Forgings, Mechanical Tubing, Rings, and Forging Stock, 18Ni - 7.8Co - 4.9Mo - 0.40Ti - 0.10Al, Consumable Electrode Vacuum Melted, Annealed |  | 
              
              
                | SAE | SAE AMS6443 | Steel Bars, Forgings, and Tubing, 1.0Cr (0.98 - 1.10C) (SAE 51100), Consumable Electrode Vacuum Melted |  |