Steel Bars, Forgings and Forging Stock 0.25Mo (0.35 - 0.40C) (SAE 4037) Aircraft Quality

Standard published on 1.7.2025

Low-Alloy Steel, Heat-Resistant, Bars, Forgings, Mechanical Tubing and Forging Stock 0.65Si - 1.25Cr - 0.50Mo - 0.25V (0.28 - 0.33C)

Standard published on 1.3.2023

Steel Bars, Forgings and Forging Stock, Low Alloy, Heat-Resistant 0.65Si - 1.25Cr - 0.50Mo - 0.85V (0.25 - 0.30C)

Standard published on 1.3.2023

Low-Alloy Steel, Heat-Resistant, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.95Cr - 0.55Mo - 0.30V (0.40 - 0.50C)

Standard published on 1.10.2021

Steel, Heat-Resistant, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.95Cr - 0.55Mo - 0.30V (0.40 - 0.50C) Vacuum Arc Remelted

Standard published on 1.2.2023

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

Standard published on 1.5.2023

Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 1.8Ni - 0.25Mo (0.38 - 0.43C) (4640), Aircraft Quality

Standard published on 1.9.2025

Steel Bars and Forgings 1.8Ni - 0.25Mo (0.38 - 0.43C) (4640) Heat Treated, 125 ksi (862 MPa) Tensile Strength

Standard published on 1.8.2022

Steel Bars, Forgings, Rings and Forging Stock 0.50Cr - 0.55Ni - 0.25Mo (0.33 - 0.38C) (8735)

Standard published on 1.2.2023

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