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Duplex 2205 Stainless Steel Tube GB/T21833 ASTM A276 S31083 Annealed Surface

Minimum Order Quantity : 5Tons Price : negotiable
Packaging Details : Stainless Steel Pipes are packed in wooden boxes in seaworthy packing. Delivery Time : 30-45 work days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 5000Tons per Year
Place of Origin: ZHEJIANG, CHINA Brand Name: TORICH
Certification: ISO9001, ISO14001, TS16949 Model Number: ASTM A276

Detail Information

Keyword: Stainless Steel Seamless Pipe Material: Duplex 2205 Super Stainless Steel
OD: 21.3mm-711mm WT: 1.65mm-30.75mm
Surface: Annealed, Brightly Annealed, Polish Application: Pressure Vessel, High Pressure Pipe Line
Heat Treatment: Full Or Isothermal Anneal
High Light:

stainless tube steel


large diameter stainless steel tube

Product Description

Products Description
TORICH GB/T21833 ASTM A276 S31083 Duplex 2205 Super Stainless Steel Seamless Pipe
GB/T21833 ASTM A276
Duplex 2205 Stainless Steel
WT: 1.65mm-30.75mm OD: 21.3-711mm Length: as customers' requirement
Hot Finish,cold Finish
Surface Treament
Annealed, Brightly Annealed, Polish
Pressure vessel, high pressure pipe line, heat exchanger(chemical processing industry), oil and gas pipeline
Pipes shall be made by the seamless process and shall be either hot finished or cold finished.
Tension Test, Flaring Test, Flange Test,
Reverse Test, Hardness Test,
Hydrostatic or Nondestructive Electric Test etc


Chemical Requirements

Steel Grade
Duplex 2205


Mechanical Properties

Ts (Mpa)
El (%)
≥ 450
≥ 620
≥ 18
≤ 320


Superior Surface Finish:
The traditional annealing:
Open furnace---Oxygen atmosphere---form Scale, tarnish the material, For more than 12m tubes this method is hard to clean inner surface.
A special bright annealing:
Closed furnace---Intert atmosphere use noble gases(Nitrogen and argon) Preventing Oxygen to contact with material---Surface finish is clean, bright and precision, which is an excellent starting point for further process, like electro-polishing and mechanical polishing. For more than 12m tubes, this method is much cleaner smoother on both inner and outer surface.

Product Show
Duplex 2205 Stainless Steel Tube GB/T21833 ASTM A276 S31083 Annealed Surface 0Duplex 2205 Stainless Steel Tube GB/T21833 ASTM A276 S31083 Annealed Surface 1


1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking

100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.


Each tube in a plastic bag, then put tubes in a seaworthy woven bag ,each unit weight 400kg-500kg/bundle.
With strong wood structure box packing by containers loading and shipping.
Or as customer's requirement.
20 ft container - GP: 5.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 25MT/container.
40 ft container - GP: 11.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 27MT/container.
40 ft container - HG: 11.8m (Length) * 2.13m (Width) * 2.72m (Hight) ------ Max Gross Weight: 27MT/container.
Port Shanghai



Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact us

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