347 exposure to temperatures in the chromium carbide precipitation pipe and spool drawings
The alloy has good oxidation resistance and creep strength to 1500¡ãF (816¡ãC). It also possesses good low temperature toughness.
Type 347 is a niobium-stabilized chromium-nickel austenitic stainless steel with corrosion resistance similar to 304/304L. This grade is typically used in the 800-1500?F temperature range, where niobium is added to stabilize chromium carbide precipitation, resulting in niobium carbide precipitation. Alloy 347 is a niobium (niobium)/tantalum stabilized austenitic chromium-nickel stainless steel developed to provide improved resistance to intergranular corrosion in type 18-8 alloys.