Browse Standards AMS6378B
Historical Revised 1981-10-01

Steel Bars, 1.0Cr - 0.20Mo - 0.045Se (0.39 - 0.48C) (4142H Modified), Die-Drawn, 130 ksi (896 MPa) Yield Strength, Free Machining AMS6378B

This specification covers a free-machining, low-alloy steel in the form of round bars 3.50 inches (88.9 mm) and under in nominal diameter.

These bars have been used typically for parts, such as shafts, axles, pins, fasteners, gears, and screw machine parts, which are normally used at hardness of 30 to 36 HRC and which do not require a high degree of ductility, but usage is not limited to such applications.

AMS6378G
2014-08-25
Latest
Revised
AMS6378F
2010-05-19
Historical
Reaffirmed
AMS6378E
1995-05-01
Historical
Reaffirmed
AMS6378D
1989-10-01
Historical
Revised
AMS6378C
1983-04-01
Historical
Revised
AMS6378B
1981-10-01
Historical
Revised
AMS6378A
1973-05-15
Historical
Revised
AMS6378
1961-07-15
Historical
Issued

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