Product Code:SAE AMS5640 Title:Steel, Corrosion-Resistant, Bars, Wire, and Forgings, 18Cr - 9.0Ni, Free Machining Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee Scope:This specification covers three types of a free-machining, corrosion-resistant steel in the form of bars, wire, forgings, and forging stock.