Form: This specification covers a low-alloy steel in the form of bars@ forgings@ mechanical tubing@ and forging stock. Application: Primarily for bearing components requiring a through-hardening steel usually with hardness of approximately 60 HRC and section thickness under 0.50 inch. (12.7 mm).
SAE AMS6440J-1988 history
2021SAE AMS6440T-2021 Steel, Bars, Forgings, and Tubing 1.45Cr (0.93 - 1.05C) (SAE 52100) For Bearing Applications (UNS G52986)
2015SAE AMS6440S-2015 Steel@ Bars@ Forgings@ and Tubing 1.45Cr (0.93 - 1.05C) (SAE 52100) For Bearing Applications (UNS G52986)
2011SAE AMS6440R-2011 Steel Bars, Forgings, and Tubing 1.45Cr (0.93 1.05C) (SAE 52100) For Bearing Applications
2007SAE AMS6440P-2007 Steel, Bars, Forgings, and Tubing 1.45Cr (0.93 - 1.05C) (SAE 52100) For Bearing Applications UNS G52986 [Superseded: SAE AMS 6441H]
2006SAE AMS6440N-2006 Steel Bars, Forgings, and Tubing 1.45Cr (0.98 1.10C) (SAE 52100) For Bearing Applications
2005SAE AMS6440M-2005 Steel Bars, Forgings, and Tubing 1.45Cr (0.98 1.10C) (SAE 52100) For Bearing Applications
2004SAE AMS6440L-2004 Steel Bars, Forgings, and Tubing 1.45Cr (0.98 1.10C) (SAE 52100) For Bearing Applications
2000SAE AMS6440K-2000 Steel, Bars, Forgings, and Tubing 1.45Cr (0.98 - 1.10C) (SAE 52100) For Bearing Applications
1994SAE AMS6440K-1994 Steel@ Bars@ Forgings@ and Tubing 1.45Cr (0.98 - 1.10C) (SAE 52100) for Bearing Applications (UNS G52986)
1988SAE AMS6440J-1988 STEEL BARS@ FORGINGS@ AND TUBING 1.45Cr (0.98 - 1.10C) (SAE 52100) For Bearing Applications (UNS G52986)
1982SAE AMS6440H-1982 STEEL BARS@ FORGINGS@ AND TUBING 1.45Cr (0.98 - 1.10C) (SAE 52100) For Bearing Applications (UNS G15216)
1980SAE AMS6440G-1980 STEEL BARS@ FORGINGS@ AND TUBING 1.45Cr (0.98 - 1.10C) (SAE 52100) Aircraft Quality For Bearing Applications (UNS G15216)