321 Stainless Steel Coil Tube
Haosteel is professional manufacturer and supplier of 321 Stainless Steel Coil Tube. Quality guaranteed, On-time delivery, After-sales warranty.
Cold rolled Hot rolled
Mill, Pickled, HL, Polished, Mirror
0.2mm - 30mm
6000mm or as customer request
Tisco, Jisco, Baosteel, etc.
15 days in common
Type 321 is an austenitic chromium-nickel stainless steel containing Titanium which is recommended for parts fabricated by welding which cannot subsequently be annealed.Type 321 is a stabilized austenitic stainless steel similar to type 304 but with a titanium addition . This titanium addition reduces or prevents carbide precipitation during welding and in 800 – 1500°F (427 – 816°C) service. It also improves the elevated temperature properties of the alloy. Type 321 provides excellent resistance to oxidation and corrosion and possesses good creep strength.
17.0 - 19.0
9.0 - 12.0
Ultimate Tensile Strength – 75KSI min (515 MPA min)
Yield Strength (0.2% Offset) –30 KSI min (205 MPA min)
Elongation – 35% min
Hardness – HRB95max (217HV max)
Aircraft collector rings, exhaust stacks, carburetor air intensifier tubes, exhaust manifolds, flexible couplings, jet engine parts, mufflers, pressure vessels, tubing, fasteners, flexible metal hose and bellows.
Type 321 is non hardenable by heat treatment. It can only be hardened by cold working.
321 can be readily formed and drawn. Like most other austenitic stainless steels, type 321 work hardens and may require annealing after severe forming.
321 has excellent corrosion resistance equivalent to type 302 or 304 in the annealed condition and superior if a weldment in these grades has not been post-weld annealed or if the application involves service in the 800°F – 1600°F range.