Browse Standards AMS6299E
Historical Reaffirmed 2009-06-11

Steel Bars, Forgings and Tubing, 0.50Cr - 1.8Ni - 0.25Mo (0.17 - 0.23C) (SAE 4320H) AMS6299E

This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

These products have been used typically for parts to be carburized requiring high minimum core hardness with wide range in sections 0.375 inch (9.5 mm) and under in thickness, but usage is not limited to such applications. The core may or may not be machinable after hardening.

AMS6299F
2014-02-06
Latest
Revised
AMS6299E
2009-06-11
Historical
Reaffirmed
AMS6299D
2000-02-01
Historical
Revised
AMS6299C
1994-04-01
Historical
Reaffirmed
AMS6299B
1974-12-15
Historical
Revised
AMS6299A
1969-05-01
Historical
Revised
AMS6299
1964-01-31
Historical
Issued

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