Alloy 321 Nuts (Din 1.4541 Nuts) Stainless Steel UNS S32100 Nuts is a stabilized austenitic stainless steel similar to SS 304 but with a titanium addition of at least five times the carbon content. Stainless Steel 321 Fasteners offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500 Degree F (427 to 816 Degree C). Stainless Steel 321 Heavy Hex Nuts is stabilized against weld heat affected zone intergranular corrosion, and resists polyphonic acid stress corrosion cracking. Stainless Steel 321 Lock Nuts is often used in Aircraft exhaust manifolds, Expansion joints, Bellows, Furnace parts and more.
Alloy 321H Nuts (Din 1.4878 Nuts) Stainless Steel UNS S32109 Nuts is a widely used alloy, where parts are heated within carbide-precipitation temperature range (800 Degree F – 1500 Degree F) and exposed to corrosive atmosphere.
In Stainless Steel 321H Self-Locking Nuts, the carbon combines preferentially with titanium to form harmless titanium carbide, leaving the chromium in solution to maintain full corrosion resistance. Stainless Steel 321H Coupler Nuts is often used in Jet engine parts, Aircraft exhaust stacks and manifolds.
These SS 321 Fasteners is stabilized in opposition to chromium carbide creation by the accumulation of titanium. Stainless Steel 321H Fasteners can be used in most weakened organic acids at modest temp. We also offer these Fasteners in customized form with respect to its sizes and shapes.
