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309 Stainless Steel Round Pipe

Haosteel is professional manufacturer and supplier of 309 Stainless Steel Round Pipe. Quality guaranteed, On-time delivery, After-sales warranty.

 

Standard: 

ASTM A269/A312/A213/A249/A554

Grade:

309

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 309 is an austenitic chromium nickel stainless steel (.08% max carbon).Type 309is employed for parts requiring both corrosion and heat resistance and oxidation resistance up to 2000ºF. Strength at elevated temperatures is similar to that of 18-8 Stainless Steels.This alloy posses excellent resistance to oxidation as well as high tensile and creep strengths at elevated temperatures. It is more resistant to marine atmospheres than Type 304.It is generally considered as a heat-resisting alloy.

 

Chemical composition:

C

Si

Mn

P

S

Cr

Ni

≤ 0.08

≤ 0.75

≤ 2.0

≤ 0.045

≤ 0.03

22.0 - 24.0

12.0 - 15.0

 

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

Furnace parts, Heat Exchangers, Paper Mills.

 

Heat Treatment
309 can be rolled formed, stamped and drawn readily. In-process annealing is usually required to reduce hardness and increase ductility..

Heat Treatment
309 can only be hardened by cold working.





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