does CF8M req. solution anneal to achieve 316 prop.
does CF8M req. solution anneal to achieve 316 prop.
(OP)
Does CF8M require solution annealing to achieve 316 s.s. properties. I have recently found out that some suppliers include solution annealing and others have not when asked to quote 316 s.s. When I question them on this I get different answers from each person asked.
The castings are being used for rotor bodies in paper stock prep equipment.
The castings are being used for rotor bodies in paper stock prep equipment.





RE: does CF8M req. solution anneal to achieve 316 prop.
--I found the above in The Making, Shaping and Treating of Steel, 9th Edn., which cites ASTM A296-68, which has been replaced by ASTM A743/A743M (see link), which cites further standards (see excerpt below).
http://www.astm.org/cgi-bin/SoftCart.exe/DATABASE.CART/PAGES/A743A743M.htm?L+mystore+qkjr7040+1044408820
ASTM A743/A743M-98ae1 Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
"1.1 This specification covers iron-chromium and iron-chromium-nickel alloy castings for general corrosion-resistant application. The grades covered by this specification represent types of alloy castings suitable for broad ranges of application which are intended for a wide variety of corrosion environments.
Note 1-For alloy castings for severe corrosion-resistant service, reference should be made to Specification A744/A744M. For general heat-resistant alloy castings, reference should be made to Specification A297/A297M. For nickel alloy castings for corrosion-resistant service, reference should be made to Specification A494/A494M."
RE: does CF8M req. solution anneal to achieve 316 prop.
RE: does CF8M req. solution anneal to achieve 316 prop.
"A351/A351M-00 Standard Specification for Castings, Austenitic, Austenitic-Ferritic (Duplex), for Pressure-Containing Parts"
http://www.astm.org/cgi-bin/SoftCart.exe/STORE/filtrexx40.cgi?U+mystore+qkjr7040+-L+A351+/usr6/htdocs/astm.org/DATABASE.CART/PAGES/A351A351M.htm
"A number of grades of austenitic and austenitic-ferritic steel castings are included in this specification. Since these grades possess varying degrees of suitability for service at high temperatures or in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and high-temperature or corrosion-resistant characteristics, or both."