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Steel, Bars and Forgings, Nitriding 1.6Cr - 0.35Mo - 1.1Al (0.38 - 0.43C) (135 Mod) Hardened and Tempered, 112 ksi (772 MPa) Tensile Strength
AMS6472G
Steel, Bars, Forgings, Mechanical Tubing, Rings, and Stock for Forging and Rings 0.75Mn - 0.78Cr - 1.8Ni - 0.35Mo - 0.20V (0.32-0.38C) (4335 Modified)
AMS6430K
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
AMS6409F
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