Stainless Steel 347H is columbium (niobium) stabilized austenitic stainless steel with high corrosion resistance in the intergranular region. It possesses high applicability in high-temperature exposure and aggressive environments applications. 347H stainless steel resists carbide precipitation in high-temperature applications and thus maintains its structure in contrast to 304 stainl... https://www.globalsteelindustries.com/stainless-steel-347-sheets-plates-manufacturers-suppliers-stockists-exporters.html