SAE AMS6475B-1955
Steel@ Nitriding 1.2Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C)

Standard No.

SAE AMS6475B-1955

Release Date

1955

Published By

SAE - SAE International

Status

Be replaced 2012-12

Replace By

SAE AMS6475C-1968

Latest

SAE AMS6475L-2018

Scope

APPLICATION: Nitrided parts@ requiring highest surface hardness@ high core hardness@ resistance to heat@ and less distortion than parts made from steel requiring quenching to case harden.

SAE AMS6475B-1955 history

• 2018 SAE AMS6475L-2018 Steel@ Nitriding@ Bars@ Forgings@ and Tubing 1.1Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C) (UNS K52355)
• 2013 SAE AMS6475K-2013 Steel, Nitriding, Bars, Forgings, and Tubing 1.1Cr 3.5Ni 0.25Mo 1.2Al (0.21-0.26C)
• 2009 SAE AMS6475J-2009 Steel, Nitriding, Bars, Forgings, and Tubing 1.1Cr 3.5Ni 0.25Mo 1.2Al (0.21-0.26C)
• 2004 SAE AMS6475H-2004 Steel, Nitriding, Bars, Forgings, and Tubing 1.1Cr 3.5Ni 0.25Mo 1.25Al (0.21-0.26C)
• 1999 SAE AMS6475G-1999 Steel, Nitriding, Bars, Forgings, and Tubing, 1.1Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C) UNS K52355
• 1992 SAE AMS6475F-1992 Steel Bars@ Forgings@ and Tubing@ Nitriding 1.1Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C) (UNS K52355)
• 1983 SAE AMS6475E-1983 STEEL BARS@ FORGINGS@ AND TUBING@ NITRIDING 1.1Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C) (UNS K52355)
• 1975 SAE AMS6475D-1975 STEEL BARS@ FORGINGS@ AND TUBING@ NITRIDING 1.1Cr - 3.5Ni - 0.25Mo - 1.25Al (0.21 - 0.26C)
• 1968 SAE AMS6475C-1968 STEEL BARS@ FORGINGS@ AND TUBING@ NITRIDING 1.1Cr-3.5Ni - 0.25Mo - 1.25Al (0.21 - 0.26C)
• 1955 SAE AMS6475B-1955 Steel@ Nitriding 1.2Cr - 3.5Ni - 0.25Mo - 1.2Al (0.21 - 0.26C)
• 1951 SAE AMS6475A-1951 STEEL@ NITRIDING 3.5Ni - 1.2Cr - 0.25Mo - 1.25Al (0.21-0.26C)
• 1945 SAE AMS6475-1945 STEEL NITRIDING 3.5 Ni-1.2 Cr-.25 Mo-1.25 Al