This specification covers two types of free-machining, corrosion and heat resistant steel in the form of bars, wire, forgings, and forging stock.
SAE AMS5642F-1972 history
2019SAE AMS5642M-2019 Steel, Corrosion and Heat-Resistant, Bars, Wire, and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining, Solution Heat Treated
2019SAE AMS5642L-2019 Steel@ Corrosion and Heat-Resistant@ Bars@ Wire@ and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining@ Solution Heat Treated (UNS S34720 Type 1; UNS S34723 Type 2)
2013SAE AMS5642K-2013 Steel, Corrosion and Heat-Resistant, Bars, Wire, and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining, Solution Heat Treated
2002SAE AMS5642K-2002 Steel, Corrosion and Heat-Resistant, Bars, Wire, and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining, Solution Heat Treated UNS S34720 Type 1; UNS S34723 Type 2
2000SAE AMS5642J-2000 Steel, Corrosion and Heat Resistant, Bars, Wire, and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining, Solution Heat Treated
1993SAE AMS5642J-1993 Steel@ Corrosion and Heat Resistant@ Bars@ Wire@ and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining@ Solution Heat Treated (UNS S34720 Type 1; UNS S34723 Type 2)