SAE

Steel Sheet, Strip, and Plate 0.95Cr - 0.20Mo - (0.38 - 0.43C) (SAE 4140)
standard by SAE International, 04/10/2020

Steel Sheet, Strip, and Plate, 0.80Cr - 1.8Ni - 0.25Mo (0.49 - 0.55C) Annealed
standard by SAE International, 04/19/2011

Steel Sheet, Strip, and Plate 0.80Cr - 1.8Ni - 0.25Mo (0.49 - 0.55C) Annealed
standard by SAE International, 12/19/2015

Forgings, Steel For Aircraft/Aerospace Equipment (Stabilized: Dec 2019)
standard by SAE International, 12/02/2019

Steel Sheet, Strip, and Plate, 1.6si 2.1cr 0.58mo 0.05v(0.41-0.46c), Annealed
standard by SAE International, 07/01/2001

Steel Bars, Forgings and Tubing 1.2Cr 2.0Ni 0.45Mo (0.27-0.33C)
standard by SAE International, 11/20/2007

Steel, Bars, Forgings, and Tubing 1.2Cr - 2.0Ni - 0.45Mo (0.27 - 0.33C)
standard by SAE International, 10/22/2021

Steel, Hotwork Tool, Bars and Forgings 5.2Cr 1.5Mo 1.0V (0.35-0.45C) (H-13) Electroslag Remelted (ESR) or Consumable Electrode Vacuum Arc Remelted (VAR) Annealed
standard by SAE International, 03/09/2009

Steel, Hotwork Tool, Bars and Forgings 5.25Cr – 1.5Mo – 1.0V (0.35–0.45C) (H-13) Electroslag Remelted (ESR) or Consumable Electrode Vacuum Arc Remelted (VAR) Annealed
standard by SAE International, 01/03/2013

Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered
standard by SAE International, 06/27/2012

Steel, Bars, Forgings, and Tubing 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered
standard by SAE International, 12/06/2016

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
standard by SAE International, 09/13/2021