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321 Stainless Steel Seamless Pipe

Haosteel is professional manufacturer and supplier of 321 Stainless Steel Seamless Pipe . Quality guaranteed, On-time delivery, After-sales warranty.

 

Standard: 

ASTM A269/A312/A213/A249/A554 

Grade:

321

Delivery:

Cold rolled  Hot rolled

Surface:

Mill, Pickled, HL, Polished, Mirror

Thickness:

0.2mm - 30mm

Outer Diameter

1mm--630mm

Length: 

6000mm or as customer request

Mill:

Tisco, Jisco, Baosteel, etc.

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 which cannot subsequently be annealed.Type 321 is a stabilized austenitic stainless steel similar to type 304 but with a titanium addition.

 

Chemical composition:

C

Si

Mn

P

S

Cr

Ni

N

≤ 0.08

≤ 1.0

≤ 2.0

≤ 0.045

≤ 0.03

17.0 - 19.0

9.0- 12.0

/

 

Physical Properties:

Annealed:

Ultimate Tensile Strength – 75 KSI min (515 MPA min)
Yield Strength (0.2% Offset) – 30 KSI min (205 MPA min)
Elongation – 40% min
Hardness –Rb 95 max

 

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.

 

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





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