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Polished Finish Stainless Steel Tubing ASTM A312 321 316L 304 Cold Drawn

Polished Finish Stainless Steel Tubing ASTM A312 321 316L 304 Cold Drawn
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Product: 321 Stainless Steel Tube
Standard: ASTM, AISI, GB, JIS
Grade: 200/300/400/900 Series
Surface: Pickled And Bright Polished Finish
Technique: Cold Rolled Hot Rolled
Type: Seamless Welded
Shape: Round.square.Rectangle
Thickness: 1mm ~ 80mm
OD: 6mm ~ 1175mm
Length: Customer's Requirement
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seamless steel tube


polished stainless tube

Basic Infomation
Place of Origin: CHINA
Brand Name: HAOSTEEL
Certification: ISO9001
Model Number: HS321
Payment & Shipping Terms
Packaging Details: Woven bags and plastic strips inside packing, wooden / iron pallet and steel strips outside packing.
Delivery Time: 5-10 working days after order confirmed and receive deposit
Supply Ability: 5000tons per month
Product Description

ASTM A312 321/316L/304 Stainless Steel Seamless Pipes And Tubes


HAOSTEEL is one of the most professional manufacturer and supplier of stainless steel Tube.Stainless steel tube can be divided into seamless tube and welded tube according to production mode. Seamless tube can be divided into hot rolled tube, cold rolled tube, cold drawn pipe and extruded tube.The welded pipe is divided into straight welded pipe and spiral welded tube.

Type 321 stainless steel is Ni - Cr - Ti austenitic stainless steel, abrasion Resistance, high temperature Resistance, Creep Resistance and so on, has the excellent high temperature Stress Rupture (Stress Rupture) properties and high temperature Creep Resistance (Creep to hold) using Stress mechanical properties suitable for high temperature welding structure, 321 stainless steel of Ti as a stabilizing element exists, better grain boundary corrosion Resistance and high temperature strength, the effective control of the formation of chromium carbide.
321 stainless steel has good abrasion resistance in organic and inorganic acids of different concentrations and temperatures, especially in oxidizing media.

321 stainless steel seamless steel pipe (gb14976-2002) is used to manufacture hot rolled and cold drawn (rolled) seamless steel pipe of high quality carbon structural steel for all kinds of structure low-medium pressure boiler superheated steam pipe, boiling water pipe and locomotive boiler superheated steam pipe, large pipe, small pipe and arch brick pipe.
The 321 stainless steel pipe has high endurance strength, high oxidation resistance, high quality carbon structural steel, alloy structural steel and stainless steel seamless steel pipe used for making steam boiler pipe of high pressure and above, and has good structure stability, hydraulic prop pipe.


Chemical Properties:

Composition 321 321H 347
  (%) (%) (%)
Carbon 0.08 max. 0.04-0.10 0.08 max.
Manganese 2.00 max. 2.00 max. 2.00 max.
Phosphorus 0.045 max. 0.045 max. 0.045 max.
Sulfur 0.030 max. 0.030 max. 0.030 max.
Silicon 0.75 max. 0.75 max. 0.75 max.
Chromium 17.00 – 19.00 17.00 – 19.00 17.00 – 19.00
Nickel 9.00 – 12.00 9.00 – 12.00 9.00 – 13.00
Nitrogen 0.10 max. - -
Other Ti 0.7 max. Ti 0.7 max. Nb 1.0 max.


Product Show:

Polished Finish Stainless Steel Tubing ASTM A312 321 316L 304 Cold Drawn 0 Polished Finish Stainless Steel Tubing ASTM A312 321 316L 304 Cold Drawn 1



Outdoor equipment for chemical, coal and petroleum industries with high corrosion resistance at grain boundary, heat-resistant parts of building materials and parts with difficulty in heat treatment, such as:
Petroleum gas combustion pipeline.

Engine exhaust pipe,Boiler shell, heat exchanger,heating furnace components.

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