USN S32100

321 SS is a heat resistant steel containing titanium to form a carbide of low solid solubility for a reduced possibility of intergranular precipitation and of associated intergranular corrosion. 321 SS exhibits a high degree of resistance to corrosion and oxidation while possessing high creep strength. Type 321 is primarily used for welded construction and for parts intermittently heated within 900-1600°F. 321 SS is nonmagnetic when annealed, and slightly magnetic when cold worked. Typically used for aircraft exhaust manifolds, various jet engine parts, high temperature chemical handling equipment, and pressure vessels. 

321 SS Fact Sheet

Composition[Cr 17-19%, Ni 9-12%, Ti 5xC min., C 0.08 max.]
SpecificationsASTM A580, AMS 5689
Density0.289 lbs/in³
Tensile Strength102 Kpsi*
Melt2550 - 2600° F
Max. Operating Temperature900 - 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!