ASTM A789 Super Duplex 2507 Pipe Cold Drawn Stainless Steel Tube For Petrochemical
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
| Minimum Order Quantity : | 5Tons | Price : | negotiable |
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| 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 |
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| Certification: | ISO9001, ISO14001, TS16949 | Model Number: | ASTM A276 |
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Detail Information |
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| Keyword: | Stainless Steel Seamless Pipe | Material: | Duplex 2205 Super Stainless Steel |
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| 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 |
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Product Description
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Standard
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GB/T21833 ASTM A276
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Matrial
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Duplex 2205 Stainless Steel
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Size
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WT: 1.65mm-30.75mm OD: 21.3-711mm Length: as customers' requirement
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Technique
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Hot Finish,cold Finish
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Surface Treament
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Annealed, Brightly Annealed, Polish
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Application
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Pressure vessel, high pressure pipe line, heat exchanger(chemical processing industry), oil and gas pipeline
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Manufacture
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Pipes shall be made by the seamless process and shall be either hot finished or cold finished.
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Test
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Tension Test, Flaring Test, Flange Test,
Reverse Test, Hardness Test,
Hydrostatic or Nondestructive Electric Test etc
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Chemical Requirements
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Steel Grade
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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Mo
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N
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Duplex 2205
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≤0.03
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≤1.00
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≤2.00
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≤0.04
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≤0.03
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21.0~24.0
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4.5~6.5
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2.5~3.5
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0.08~0.2
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Mechanical Properties
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Ts (Mpa)
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El (%)
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Hv
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2.0t/2B
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≥ 450
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≥ 620
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≥ 18
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≤ 320
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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.
QUALITY CONTROL:
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.
PACKING:
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
Enter Your Message
| TORICH INTERNATIONAL LIMITED |
| Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China |
| 86-574-88086983 |
| sales@steel-tubes.com |