SAE AMS6378C-1983
STEEL BARS 1.0Cr - 0.20Mo - 0.015Te (0.39 - 0.48C) (4142H Modified) Die-Drawn 130@000 psi (895 MPa) Yield Strength Free Machining

Standard No.

SAE AMS6378C-1983

Release Date

1983

Published By

SAE - SAE International

Status

Be replaced 2012-12

Replace By

SAE AMS6378D-1989

Latest

SAE AMS6378H-2019

Scope

Form: This specification covers a free-machining@ low-alloy steel in the form of round bars 3.50 in. (90 mm) and under in nominal diameter. Application: Primarily for parts such as shafts@ axles@ pins@ fasteners@ gears@ and screw machine parts which are normally used at hardness of 30 - 36 HRC and which do not require a high degree of ductility.

SAE AMS6378C-1983 history

• 2019 SAE AMS6378H-2019 Steel Bars 1.0Cr - 0.20Mo - 0.45Se (0.39 - 0.48C) (4142H Modified) Die-Drawn, 130 ksi (896 MPa) Yield Strength Free Machining
• 2014 SAE AMS6378G-2014 Steel Bars, 1.0Cr - 0.20Mo - 0.045Se (0.39 - 0.48C) (4142H Modified), Die-Drawn, 130 ksi (896 MPa) Yield Strength, Free Machining
• 2010 SAE AMS6378F-2010 Steel Bars 1.0Cr - 0.20Mo - 0.45Se (0.39 - 0.48C) (4142H Modified) Die-Drawn, 130 ksi (896 MPa) Yield Strength Free Machining
• 2001 SAE AMS6378F-2001 Steel Bars 1.0Cr - 0.20Mo - 0.45Se (0.39 - 0.48C) (4142H Modified) Die-Drawn, 130 ksi (896 MPa) Yield Strength Free Machining UNS K11542
• 1995 SAE AMS6378E-1995 STEEL BARS l.0Cr - 0.20Mo - 0.045Se (0.39 - 0.48C) (4142H Modified) Die-Drawn, 130.0 ksi (896 MPa) Yield Strength Free Machining
• 1991 SAE AMS6378E-1991 Steel Bars 1.0Cr - 0.20Mo - 0.045Se (0.39 - 0.48C) (4142H Modified) Die-Drawn@ 130.0 ksi (896 MPa) Yield Strength Free Machining
• 1989 SAE AMS6378D-1989 STEEL BARS 1.0Cr - 0.20Mo - 0.015Te (0.39 - 0.48C) (4142H Modified) Die-Drawn 130@000 psi (896 MPa) Yield Strength Free Machining (UNS K11542)
• 1983 SAE AMS6378C-1983 STEEL BARS 1.0Cr - 0.20Mo - 0.015Te (0.39 - 0.48C) (4142H Modified) Die-Drawn 130@000 psi (895 MPa) Yield Strength Free Machining
• 1981 SAE AMS6378B-1981 STEEL BARS 0.95Cr - 0.20Mo - 0.015Te (0.39 - 0.48C) (4142H Modified) Die-Drawn and Tempered@ 130@000 psi (896 MPa) Yield Strength Free Machining
• 1973 SAE AMS6378A-1973 STEEL BARS 0.95Cr - 0.20Mo - 0.05Te (0.38 - 0.45C) SAE 4140 Modified Die-Drawn and Tempered@ 130@000 psi (896 MPa) Yield Strength
• 1961 SAE AMS6378-1961 STEEL 0.95Cr - 0.2Mo (0.38 - 0.45C) (SAE 4140 Modified) Die Drawn and Tempered@ 130@000 psi Yield