Shanxi Zhongcheng Metal Co., Ltd.
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal |
| Supply Ability | 10000tons |
| Delivery Time | 15-25days |
| Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA |
| Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available |
| Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg |
| Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons |
| Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 |
| Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA |
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Product Specification
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal | Supply Ability | 10000tons |
| Delivery Time | 15-25days | Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA | Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available | Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg | Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons | Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 | Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA | ||
| High Light | Corrosion Resistant Stainless Steel Tube ，Stainless Steel Tube Duplex 2205 ，Stainless Steel Tube Duplex 2507 | ||
The Corrosion-Resistant Tube for Marine Environments is specifically engineered to withstand the highly aggressive conditions found in seawater, brackish water, and coastal atmospheric applications. Manufactured from molybdenum-bearing austenitic stainless steel or duplex grades, this tube offers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. Its seamless construction eliminates weld-related weak points, ensuring long-term reliability in offshore and marine applications.
| Parameter | Details |
|---|---|
| Standards | ASTM A312, A269, A789; EN 10216-5; ASME SA312 |
| Available Grades | 316L, 317L, 904L, Duplex 2205, Super Duplex 2507, Alloy 625 |
| Outer Diameter | 6 mm – 610 mm |
| Wall Thickness | 0.5 mm – 25 mm |
| Length | Fixed lengths 3m / 6m, or custom lengths upon request |
| Manufacturing Process | Seamless – Cold drawn / Hot rolled |
| Surface Finish | Annealed, pickled, passivated, polished |
| Grade | Cr | Ni | Mo | N | PREN* |
|---|---|---|---|---|---|
| 316L | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | – | 24-26 |
| 317L | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | – | 29-33 |
| 904L | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | – | 34-38 |
| Duplex 2205 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 | 35-38 |
| Super Duplex 2507 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | 42-45 |
PREN = Pitting Resistance Equivalent Number (Cr% + 3.3*Mo% + 16*N%). Higher PREN indicates better chloride resistance.
| Grade | Condition | Tensile Strength (MPa) min | Yield Strength (MPa) min | Elongation (%) min | Hardness (HB) max |
|---|---|---|---|---|---|
| 316L | Annealed | 485 | 170 | 40 | 217 |
| 317L | Annealed | 515 | 205 | 40 | 217 |
| 904L | Annealed | 490 | 215 | 35 | 220 |
| Duplex 2205 | Annealed | 620 | 450 | 25 | 290 |
| Super Duplex 2507 | Annealed | 730 | 550 | 20 | 310 |
Tested in accordance with ASTM E8 / E8M.
Excellent Chloride Corrosion Resistance – Withstands seawater, brine, and salt spray
High Pitting Resistance Equivalent Number (PREN) – Critical for long-term immersion service
Stress Corrosion Cracking Resistance – Performs well in high-temperature seawater
Good Biofouling Resistance – Smooth surface reduces marine organism attachment
Proven Offshore Performance – Widely used in oil & gas, desalination, and shipbuilding
Offshore Platforms – Seawater cooling lines, firewater systems, hydraulic lines
Shipbuilding – Ballast water systems, fuel lines, deck drainage
Desalination Plants – High-pressure brine piping, reverse osmosis systems
Subsea Equipment – Umbilicals, flow lines, hydraulic control lines
Coastal Infrastructure – Bridge drainage, seawater intake structures
Marine Exhaust Systems – Wet exhaust and scrubber systems
Aquaculture – Seawater supply and recirculating systems
For inquiries, technical datasheets, or custom sizes, please contact our sales team.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
20000000-50000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Zhongcheng Metal: A professional supplier of stainless steel tubes and plates. We export to 11 countries, including Germany, the United States, the United Kingdom, and Japan. By adopting advanced manufacturing processes and implementing comprehensive 5S management across our operations, we provide... Zhongcheng Metal: A professional supplier of stainless steel tubes and plates. We export to 11 countries, including Germany, the United States, the United Kingdom, and Japan. By adopting advanced manufacturing processes and implementing comprehensive 5S management across our operations, we provide...
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