WCB Carbon Steel vs SS316 for Steam Application
WCB Carbon Steel vs SS316 for Steam Application
(OP)
Hi all. Please help me decide which material is ideal for steam application at high pressures and temperatures, WCB Carbon Steel or SS316? I will be using a triple eccentric butterfly valve @ 8" in size and ANSI600.
Thank you all in advance for your infos.
Thank you all in advance for your infos.





RE: WCB Carbon Steel vs SS316 for Steam Application
Butterfly valves are very-cost effective compared to alternate valve choices,offers high cycle life but actually they are not suitable enough for high pressure steam services. This is the very common disadvantage of these valve types.
I cant tell you the exact type without knowing at what temp/pressure and for which function valves will be used(starting/stopping the flow,regulating, preventing back flow etc.)
But based upon the material choice, it is more suitable to use cast iron ( approx. up to 450 F at 250 psi ). Of course you can also use ductile iron and s.s but your information is general. This is all I have.
Cheers
RE: WCB Carbon Steel vs SS316 for Steam Application
Cheers
RE: WCB Carbon Steel vs SS316 for Steam Application
Cheers
RE: WCB Carbon Steel vs SS316 for Steam Application
RE: WCB Carbon Steel vs SS316 for Steam Application
Above 775F, the piping material of choice is chrome-moly steel, not 316SS. Typically this would be something like A335-P22 ( 2-1/4 CR - 1 MO).
Much higher temperatures get you into austenitic stainless materials, although there are other choices besides 316.
Regards