UNS S34700

347 SS is a heat and corrosion resisting alloy stabilized by the addition of columbium and titanium. It is superior for welded construction used in both severely corrosive and elevated temperatures between 800-1500°F. Type 347 is nonmagnetic when annealed, and slightly magnetic when cold worked. Typically used for aircraft or jet engine parts, pressure vessels, fire walls, and elevated temperature chemical handling equipment.

347 SS Fact Sheet

Composition[Cr 17-19%, Ni 9-13%, Cb+Ta 10xC min, C 0.08 max.]
SpecificationsASTM A580, AMS 5646, AMS 5674
Density0.289 lbs/in³
Tensile Strength102 Kpsi*
Melt2550 - 2600° F
Max. Operating Temperature800 - 1600° F

* Tensile strength and elongation are for annealed 0.012″ wire diameter. Please note that material performance data is provided a reference guide only… There are many factors involved in wire cloth performance, so please consult with an experienced engineer before choosing the metal best suited for your unique needs!