| SAE | SAE AMS6290 | Steel, Bars, Forgings, and Forging Stock, Carburizing, 1.8Ni - 0.25Mo (0.11 - 0.17C) (SAE 4615) |  | 
              
              
                | SAE | SAE AMS6292 | Steel Bars and Forgings and Forging Stock, Carburizing, Aircraft Quality, 1.8Ni - 0.25Mo - (0.15 - 0.20C), (SAE 4617) |  | 
              
              
                | SAE | SAE AMS6294 | Steel Bars and Forgings and Forging Stock, Carburizing, Aircraft Quality 1.8Ni - 0.25Mo (0.17 - 0.22C) (4620) |  | 
              
              
                | SAE | SAE AMS6299 | Steel Bars, Forgings, and Mechanical Tubing and Forging Stock, Carburizing, Aircraft Quality, 0.50Cr - 1.8Ni - 0.25Mo - (0.17 - 0.23C), (SAE 4320H) |  | 
              
              
                | 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 AMS6280 | Steel Bars, Forgings, Rings and Forging Stock, 0.50Cr - 0.55Ni - 0.20Mo (0.28 - 0.33C) (SAE 8630) |  | 
              
              
                | SAE | SAE AMS6303 | Steel Bars, Forgings and Forging Stock, Low Alloy, Heat-Resistant, 0.65Si - 1.25Cr - 0.50Mo - 0.85V (0.25 - 0.30C) |  | 
              
              
                | SAE | SAE AMS6527 | Steel, Bars, Forgings, and Forging Stock, 2.0Cr - 10Ni - 14Co - 1.0Mo (0.15 - 0.19C), Vacuum Melted, Normalized and Overaged |  | 
              
              
                | SAE | SAE AMS6487 | Steel, Bars, Forgings, and Forging Stock 5.0Cr - 1.3Mo - 0.50V (0.38 - 0.43C) (H-11) Consumable Electrode Vacuum Re-Melted |  | 
              
              
                | SAE | SAE AMSS18732 | Steel Bars, Wire, Forging Stock, Forgings, Tubing (431),  Special Quality |  | 
              
              
                | SAE | SAE AMS6320 | Steel Bars, Forgings, Rings and Forging Stock, 0.50Cr - 0.55Ni - 0.25Mo (0.33 - 0.38C) (8735) |  | 
              
              
                | SAE | SAE AMS6308 | Steel, Bars, and Forgings and Forging Stock, 0.90Si - 1.0Cr - 2.0Ni - 3.2Mo - 2.0Cu - 0.10V (0.07 - 0.13C), Vacuum Arc or Electroslag Remelted |  | 
              
              
                | SAE | SAE AMS6516 | Steel, Bars and Forgings and Forging Stock 1Cr - 10Ni - 7Co - 2Mo - 1.3W - 0.1V - (0.28 - 0.32C) Vacuum Induction Melted,Vacuum Arc Remelted, Normalized and Annealed Precipitation Hardenable |  | 
              
              
                | SAE | SAE AMS6532 | Steel, Bars and Forgings, and Forging Stock 3.1Cr - 11.5Ni - 13.5Co - 1.2Mo (0.21 - 0.25C) Vacuum Melted, Normalized and Overaged Precipitation Hardenable |  | 
              
              
                | SAE | SAE AMS6472 | Steel, Bars and Forgings and Forging Stock, Nitriding, 1.6Cr - 0.35Mo - 1.1Al (0.38 - 0.43C) (135 Mod), Aircraft Quality, Hardened and Tempered, 112 ksi (772 Mpa) Tensile Strength_x000D_ |  | 
              
              
                | SAE | SAE AMS6484 | Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340), Normalized and Tempered |  | 
              
              
                | 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 AMS6409 | Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered _x000D_ |  | 
              
              
                | SAE | SAE AMS6415 | Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) |  | 
              
              
                | SAE | SAE AMS6382 | Steel, Bars, Forgings, Rings, and Stock for Forging or Flash Welded Rings, Aircraft Quality, 0.95Cr - 0.20Mo (0.38 - 0.43C) (4140), Annealed_x000D_ |  | 
              
              
                | SAE | SAE AMS6411 | Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 0.88Cr - 1.8Ni - 0.42Mo - 0.08V (0.28 - 0.33C) (4330 Mod), Consumable Electrode 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 AMS6427 | Steel Bars, Forgings, Mechanical Tubing, and Forging Stock, Aircraft Quality, 0.88Cr - 1.8Ni - 0.42Mo - 0.08V (0.28 - 0.33C) (4330 Mod) |  | 
              
              
                | SAE | SAE AMS6424 | Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.49 - 0.55C) |  | 
              
              
                | SAE | SAE AMS6428 | Steel, Bars, Forgings, Mechanical Tubing and Forging Stock, Aircraft Quality, 0.78Cr - 1.8Ni - 0.35Mo - 0.20V (0.32 - 0.38C) (4335 Mod) |  |