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metallurgy material designation of 317H

metallurgy material designation of 317H

metallurgy material designation of 317H

(OP)
I have someone asking for 317H for seamless pipe.  ASTM lists 317 and 317L but not 317H.  Can anyone help me on the material properties?  

RE: metallurgy material designation of 317H

If you are using ASTM specification A 312 "Standard Specification for Seamless and Welded Austenitic Stainless Steel Pipes" for high temperature service, there is no 317H grade. Use 317.

RE: metallurgy material designation of 317H

(OP)
My understanding is that ASTM is adding a material designation of 317H.  Material content?  Stress curves at temperature?

RE: metallurgy material designation of 317H

Have not seen anything yet. The 317 has a 0.08 carbon max limit and most likely would have similar strength and creep properties to an H grade if the material was purchased to the max carbon limit.

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