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321 cold rolled stainless steel sheet
  • 321 cold rolled stainless steel sheet
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 .

Description

321 cold rolled stainless steel sheet

Maximetal is professional manufacturer and supplier of 321 cold rolled stainless steel sheet. Quality guaranteed, On-time delivery, After-sales warranty. 

Description:

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.

Chemical composition:

C

Si

Mn P S Cr Ni Ti
≤ 0.08 ≤ 0.75 ≤ 2.00 ≤ 0.045 ≤ 0.03 17.0 - 19.0 9.0 - 12.0 5(C=N)~0.7




Physical Properties:

Annealed:
Ultimate Tensile Strength – 75KSI min (515 MPA min)
Yield Strength (0.2% Offset) –30 KSI min (205 MPA min)
Elongation – 40% min
Hardness – HRB95max (217HV max) 

Applications:

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.

Heat Treatment:

Type 321 is non hardenable by heat treatment. It can only be hardened by cold working.


Cold Forming:
321 can be readily formed and drawn. Like most other austenitic stainless steels, type 321 work hardens and may require annealing after severe forming.

Corrosion Resistance:
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.

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