SAE Standards Works
AMS E Carbon and Low Alloy Steels Committee
AMS6299F - Steel Bars, Forgings and Tubing, 0.50Cr - 1.8Ni - 0.25Mo (0.17 - 0.23C) (SAE 4320H)
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Steel Bars, Forgings and Tubing, 0.50Cr - 1.8Ni - 0.25Mo (0.17 - 0.23C) (SAE 4320H)
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 results from a Five Year Review and update of this specification
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