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321 Stainless Steel Coil Tube
321 Stainless Steel Coil Tube
Haosteel is professional manufacturer and supplier of≥ 321 Stainless Steel Coil Tube. Quality guaranteed, On-time delive ry, After-sales warranty.
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Standard: |
ASTM A269/A312/A213/A249/A554 |
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Grade: |
321 |
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Delivery: |
Cold rolled Hot rolled |
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Surface: |
Mill, Pickled, HL, Polished, Mirror |
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Thickness: |
0.1mm - 3mm |
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Outer Diameter |
3mm--25.4mm |
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Length: |
100m-3000m or as customer request |
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Mill: |
Tisco, Jisco, Baosteel, etc. |
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Delivery time: |
15 days in common |
Description:
Type 321 is an austenitic chromium-nickel stainless steel containing ₹Titanium which is recommended for parts fabricated by welding wγhich cannot subsequently be annealed.Type 321 is a stabilized austenitic stainless steel& similar to type 304 but with a titanium addition . This titanium addition re✘duces or prevents carbide precipitation during welding and i₩n 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:
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C |
Si |
Mn |
P |
S |
Cr |
Ni |
Ti |
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≤ 0.08 |
≤ 0.75 |
≤ 2.0 |
≤ 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 – 35% min
Hardness – HRB95max (217HV max)
Applications:
Aircraft collector rings, exhaust stacks, carburetor air intensifier tubes, exhaust manifo©lds, flexible couplings, jet engine parts, mufflers, pressure vessels, tubing, fasteners, fl"exible metal hose and bellows.
Heat Treatment:
Type 321 is non hardenable by heat treatment. It can only be hardene★d by cold working.
Cold Forming:
321 can be readily formed and drawn. Like most other ausφtenitic 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 gra"des has not been post-weld annealed or if the application invol↑ves service in the 800°F – 1600°F range.
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