SAE

Steel Bars and Forgings 1.8Ni – 0.25Mo (0.38 – 0.43C) (4640) Heat Treated, 125 ksi (862 MPa) Tensile Strength
standard by SAE International, 11/05/2012

Steel Bars and Forgings 1.8Ni - 0.25Mo (0.38 ¿¿¿ 0.43C) (4640) Heat Treated, 125 ksi (862 MPa) Tensile Strength
standard by SAE International, 08/24/2017

Steel Bars, Forgings, and Rings, 0.50Cr 0.55Ni 0.25Mo (0.33-0.38C) (SAE 8735)
standard by SAE International, 11/20/2007

Wire, Welding, 0.60Cr - 0.55Ni - 0.20Mo - (0.33 - 0.38C) Vacuummelted Environment Controlled Packaging (Cancelled: Nov 1994)
standard by SAE International, 11/01/1994

Steel Bars, Forgings, and Tubing, 0.42cr 0.30ni 0.12mo 0.003b (0.38-0.43c) (81b40)
standard by SAE International, 10/01/1983

Steel Bars, Forgings, and Rings, 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740)
standard by SAE International, 11/23/2005

Steel, Mechanical Tubing 0.50Cr 0.55Ni 0.25Mo (0.38-0.43C) (SAE 8740) ( Reaffirmed: Apr 2007 )
standard by SAE International, 08/01/2002

Steel, Mechanical Tubing 0.50Cr - 0.55Ni - 0.25Mo (0.38 – 0.43C) (SAE 8740)
standard by SAE International, 09/27/2012

Steel, Mechanical Tubing 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740)
standard by SAE International, 09/29/2017

Steel Bars, Forgings, and Tubing 0.65Cr - 0.70Ni - 0.25Mo (0.38 - 0.43C) (8740 Modified)
standard by SAE International, 08/08/2018

Steel, Bars and Forgings 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 105 ksi (724 MPa) Tensile Strength
standard by SAE International, 04/19/2010

Steel, Bars, and Forgings 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 105 ksi (724 MPa) Tensile Strength
standard by SAE International, 12/20/2015