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347 Stainless Steel Seamless Pipe
347 stainless seamless steel pipe
Haosteel is professional manufacturer and supplier of 347 Stainless Steel Seamle ss Pipe. Quality guaranteed, On-time delivery, After-sales warranty.
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Standard: |
ASTM A269/A312/A213/A249/A554 |
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Grade: |
347 |
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Delivery: |
Cold rolled Hot rolled |
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Surface: |
Mill, Pickled, HL, Polished, Mirror |
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Thickness: |
0.2mm - 30mm |
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Outer Diameter |
1mm--930mm |
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Length: |
6000mm 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 347 is a stabilized austenitic stainless steel similar to type 304 with an additioφn of Columbium and Tantalum. The columbium serves to produce a stabilized type of stainless st¥eel which is immune to chromium carbide precipitation. This type of grades are♣ thus recommended for parts fabricated by welding which cannot be susequently anneal™ed or for parts which must operate in service betwe←en 800 – 1600°F.
Chemical composition:
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
N |
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≤ 0.08 |
≤ 0.75 |
≤ 2.0 |
≤ 0.045 |
≤ 0.03 |
17.0 - 19.0 |
9.0 - 13.0 |
0.4 - 0.6 |
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 – HRB92max (201HV max)
Applications:
Collector rings, airplane exhaust stacks, annealing box covers, jet "engine parts,expansion joints, tubing, fasteners, flexible met al hose and bellows.
Heat Treatment:
347 is non hardenable by heat treatment. It can only® be hardened by cold working.
Cold Forming:
347 can be readily formed and drawn. Like most other austenitic stain↔less steels, type 347 work hardens and may require annealing after severe forming.
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