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SAE AMS 5639K-2022
Steel, Corrosion-Resistant, Bars, Wire, Forgings, Mechanical Tubing, Rings and Forging and Ring Stock 19Cr - 10Ni Solution Heat Treated
This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings.
Society of Automotive Engineers [sae]