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 |
View Detail Information
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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 | Duplex Stainless Steel Tubing NACE MR0175 ，Duplex Stainless Steel Tubing 2205 ，Oil And Gas Stainless Steel Tubing 2507 | ||
Oil and gas duplex stainless steel tubing is specifically engineered for the demanding environments encountered in upstream, midstream, and downstream operations. The unique two-phase microstructure (austenite + ferrite) combined with high chromium, molybdenum, and nitrogen content provides exceptional resistance to the corrosive conditions typical of oil and gas production, including sour service (H₂S), carbon dioxide (CO₂), chlorides, and high pressures.
Our duplex tubing is widely used in downhole completions, subsea umbilicals, flow lines, and surface facilities where standard carbon steel or austenitic stainless steel grades experience pitting, stress corrosion cracking, or general corrosion failure.
| Parameter | Details |
|---|---|
| Standard | ASTM A789, A790, API 5LC, ISO 13628, NACE MR0175 / ISO 15156 |
| Grades | 2205 (UNS S31803, S32205), 2507 (UNS S32750), S32760 |
| Size (OD) | 6.35 mm – 254 mm (1/4" – 10") |
| Wall Thickness | 0.89 mm – 12.7 mm |
| Length | Random lengths 6m – 12m, custom cut, coil lengths for small diameters |
| Process | Seamless (cold drawn) – preferred for oil and gas service |
| Surface Finish | Annealed and pickled, Bright annealed, Mechanically polished |
| End Finish | Plain ends, Beveled ends, Threaded and coupled |
| Element | 2205 (S32205) | 2507 (S32750) | S32760 |
|---|---|---|---|
| Carbon (C) ≤ | 0.030 | 0.030 | 0.030 |
| Silicon (Si) ≤ | 1.00 | 0.80 | 1.00 |
| Manganese (Mn) ≤ | 2.00 | 1.20 | 1.00 |
| Phosphorus (P) ≤ | 0.030 | 0.035 | 0.030 |
| Sulfur (S) ≤ | 0.020 | 0.020 | 0.010 |
| Chromium (Cr) | 22.0 – 23.0 | 24.0 – 26.0 | 24.0 – 26.0 |
| Nickel (Ni) | 4.5 – 6.5 | 6.0 – 8.0 | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 3.5 | 3.0 – 5.0 | 3.0 – 4.0 |
| Nitrogen (N) | 0.14 – 0.20 | 0.24 – 0.32 | 0.20 – 0.30 |
| Tungsten (W) | — | — | 0.50 – 1.00 |
| Copper (Cu) | — | ≤ 0.50 | 0.50 – 1.00 |
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|---|
| 2205 | ≥ 620 | ≥ 450 | ≥ 25 | ≤ 28 (NACE) |
| 2507 | ≥ 730 | ≥ 550 | ≥ 20 | ≤ 28 (NACE) |
| S32760 | ≥ 730 | ≥ 550 | ≥ 25 | ≤ 28 (NACE) |
Note: Hardness limits above are for NACE MR0175 sour service compliance. Please refer to the mill test certificate for actual data.
Sour Service Certified – NACE MR0175 / ISO 15156 compliant for H₂S environments
High Strength – Yield strength up to 550 MPa (80 ksi) minimum
Stress Corrosion Cracking Resistance – Resists SCC in chloride and H₂S environments
Pitting Resistance – PREN of 33-45 protects against localized corrosion
CO₂ Corrosion Resistance – Excellent performance in sweet service (CO₂ containing)
High Pressure Capability – Suitable for downhole and subsea pressures
Low Temperature Toughness – Maintains impact resistance down to -50°C
Good Weldability – Can be welded in field and shop applications
| Service Type | Description | Duplex Suitability |
|---|---|---|
| Sweet Service | CO₂ present, no H₂S | Excellent (2205, 2507) |
| Sour Service | H₂S present (up to 10 psi partial pressure) | Excellent with NACE certification |
| High Chloride | Formation waters, produced brines | Excellent (2507 preferred) |
| High Pressure | Downhole, subsea, wellhead | Excellent (seamless preferred) |
| High Temperature | Up to 300°C (572°F) | Good (2205, 2507) |
| Low Temperature | Down to -50°C (-58°F) | Good |
Downhole
Subsea
Surface Facilities
Midstream
Downstream / Refinery
For applications containing hydrogen sulfide (H₂S), duplex tubing must comply with NACE MR0175.
| Requirement | 2205 | 2507 |
|---|---|---|
| Maximum Hardness (HRC) | ≤ 28 | ≤ 28 |
| Sulfide Stress Cracking (SSC) | Resistant | Resistant |
| Hydrogen Induced Cracking (HIC) | Resistant | Resistant |
| Maximum H₂S Partial Pressure | 10 psi (70 kPa) | 10 psi (70 kPa) |
| Maximum Temperature | 300°C (572°F) | 300°C (572°F) |
| Minimum Temperature | -50°C (-58°F) | -50°C (-58°F) |
| NACE Region | 0, 1, 2, 3 | 0, 1, 2, 3 |
For subsea umbilical applications, our duplex tubing meets ISO 13628 requirements.
| Parameter | Detail |
|---|---|
| Standard | ISO 13628-5 |
| Typical Grades | 2205, 2507 |
| Typical OD Range | 6.35 mm – 25.4 mm (1/4" – 1") |
| Typical Wall Thickness | 0.89 mm – 2.77 mm |
| Lengths | Continuous coils up to several kilometers |
| Testing | Hydrostatic, PMI, tensile, flattening, guided bend |
| Certification | EN 10204 3.1 or 3.2 |
For downhole production applications, duplex tubing can be supplied to API 5LC standards.
| Grade | API 5LC Equivalent | Typical Depth Rating | Yield Strength |
|---|---|---|---|
| 2205 | Grade UNS S32205 | 5,000 – 15,000 ft | 65 – 95 ksi |
| 2507 | Grade UNS S32750 | 10,000 – 20,000 ft | 80 – 120 ksi |
| Grade | Maximum Pressure (ksi) | Maximum Temperature | Minimum Temperature |
|---|---|---|---|
| 2205 | Up to 20 (dependent on wall thickness) | 300°C (572°F) | -50°C (-58°F) |
| 2507 | Up to 25 (dependent on wall thickness) | 300°C (572°F) | -50°C (-58°F) |
Pressure ratings are derated at elevated temperatures. Consult engineering tables for specific values.
| Property | Carbon Steel | 13Cr (Martensitic) | 316L | 2205 Duplex | 2507 Super Duplex |
|---|---|---|---|---|---|
| CO₂ Corrosion | Poor | Good | Good | Excellent | Excellent |
| H₂S (Sour Service) | Poor (with inhibition) | Limited | Poor | Good | Good |
| Chloride SCC | N/A | Poor | Poor | Excellent | Excellent |
| Yield Strength (ksi) | 35 – 55 | 55 – 80 | 30 | 65 | 80 |
| Relative Cost | 1x | 3-4x | 4-5x | 5-6x | 7-8x |
| Best For | Sweet, low corrosion | Sweet, mild sour | Clean service | Sour, high chloride | Extreme sour, seawater |
Need duplex tubing for your oil and gas project? We are ready to supply.
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
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