Steel Bars, Forgings, and Rings and Stock for Forging or Flash Welded Rings Aircraft-Quality 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (8740)

Standard published on 1.10.2023

Steel, Mechanical Tubing 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740)

Standard published on 1.10.2022

Steel Bars, Forgings, Mechanical Tubing, and Forging Stock Aircraft-Quality 0.65Cr - 0.70Ni - 0.25Mo (0.38 - 0.43C) (8740 Modified)

Standard published on 1.10.2023

Steel, Bars, and Forgings, Aircraft Quality, 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 105 ksi (724 MPa) Tensile Strength

Standard published on 1.12.2024

Steel Bars and Forgings 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 125 ksi (862 MPa) Tensile Strength

Standard published on 1.6.2024

Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.50Cr - 0.55Ni - 0.25Mo (0.48 to 0.53C) (8750)

Standard published on 1.1.2023

Steel Bars, Forgings, Mechanical Tubing and Forging Stock 0.65Cr - 1.25Ni (0.33 - 0.38C)

Standard published on 1.4.2022

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

Standard published on 1.10.2023

Steel Bars, Forgings, and Tubing 0.80Cr - 1.0Ni - 0.25Mo (0.38 - 0.43C) (SAE 9840)

Standard published on 1.9.2015

Steel, Sheet, Strip, and Plate 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130) Aircraft Quality, Normalized or Otherwise Heat Treated

Standard published on 1.12.2024