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 | High Pressure Duplex Stainless Steel Pipe ，Duplex Stainless Steel Pipe 550 MPa ，Duplex SS Pipe Corrosion Resistance | ||
High pressure duplex stainless steel pipe is specifically designed and manufactured to withstand extreme internal pressures while maintaining structural integrity and corrosion resistance. The unique two-phase microstructure (austenite + ferrite) provides approximately twice the yield strength of standard austenitic stainless steels such as 304 and 316, allowing for significantly thinner wall sections at equivalent pressure ratings.
Our high pressure duplex pipes are produced seamless (preferred for high pressure service) and are suitable for applications ranging from hydraulic systems and chemical injection lines to subsea control systems and high pressure oil and gas production.
| Parameter | Details |
|---|---|
| Standard | ASTM A789, A790, ASME SA790, NACE MR0175, API 5LC, ISO 13628 |
| Grades | 2205 (UNS S31803, S32205), 2507 (UNS S32750), S32760 |
| Size (OD) | 6.35 mm – 254 mm (1/4" – 10") – seamless |
| Wall Thickness | 1.0 mm – 25.0 mm |
| Length | 3000 mm, 6000 mm, random lengths, custom cut |
| Process | Seamless (cold drawn / cold rolled) – welded not recommended for high pressure |
| Surface Finish | Annealed and pickled, Bright annealed, Mechanically polished |
| End Finish | Plain ends, Beveled ends, Threaded and coupled, Integral connections |
| Element | 2205 (S32205) | 2507 (S32750) | S32760 |
|---|---|---|---|
| Carbon (C) ≤ | 0.030 | 0.030 | 0.030 |
| 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 (HB) | Max HRC (NACE) |
|---|---|---|---|---|---|
| 2205 | ≥ 620 (90 ksi) | ≥ 450 (65 ksi) | ≥ 25 | ≤ 290 | ≤ 28 |
| 2507 | ≥ 730 (106 ksi) | ≥ 550 (80 ksi) | ≥ 20 | ≤ 310 | ≤ 28 |
| S32760 | ≥ 730 (106 ksi) | ≥ 550 (80 ksi) | ≥ 25 | ≤ 310 | ≤ 28 |
Note: The values above are minimum requirements. Higher strengths available upon request.
| Grade | Yield Strength (MPa) | Relative Wall Thickness (vs 316L) | Maximum Operating Pressure* |
|---|---|---|---|
| 316L (Austenitic) | ≥ 205 | 1.00x (baseline) | Moderate |
| 2304 (Lean Duplex) | ≥ 400 | 0.51x | High |
| 2205 (Standard Duplex) | ≥ 450 | 0.46x | Very High |
| 2507 (Super Duplex) | ≥ 550 | 0.37x | Extremely High |
At equivalent OD and pressure rating, duplex pipe requires approximately 40-50% thinner wall than 316L.
Same OD (25.4 mm / 1")
| Grade | Wall Thickness | Calculated Burst Pressure (approx.) |
|---|---|---|
| 316L | 3.0 mm | 45 MPa (6,500 psi) |
| 2205 | 3.0 mm | 100 MPa (14,500 psi) |
| 2205 | 2.0 mm | 65 MPa (9,400 psi) |
| 2507 | 2.0 mm | 85 MPa (12,300 psi) |
Burst pressures are theoretical estimates. Actual pressure ratings must be calculated per ASME B31.3 or applicable code.
For seamless duplex pipe, allowable stress values per ASME B31.3:
| Grade | Allowable Stress (MPa) up to 300°C |
|---|---|
| 2205 | 138 – 158 (dependent on temperature) |
| 2507 | 166 – 186 (dependent on temperature) |
Allowable stress is approximately 2-2.5x higher than 316L (69-79 MPa at room temperature).
| Application | Typical Pressure Range | Recommended Grade |
|---|---|---|
| Chemical Injection Lines | 10,000 – 20,000 psi | 2205 or 2507 |
| Subsea Umbilical Tubes | 5,000 – 15,000 psi | 2205 or 2507 |
| Downhole Control Lines | 10,000 – 20,000 psi | 2507 |
| Hydraulic Systems | 3,000 – 10,000 psi | 2205 |
| Wellhead Control Panels | 5,000 – 15,000 psi | 2205 |
| High Pressure Process Piping | 1,500 – 6,000 psi | 2205 |
| Hydrotesting Lines | Up to 25,000 psi | 2507 |
| Instrumentation Tubing | 3,000 – 10,000 psi | 2205 |
| Sour High Pressure Gas | 5,000 – 15,000 psi | 2205 / 2507 (NACE) |
For high pressure applications containing hydrogen sulfide (H₂S):
| Requirement | 2205 | 2507 |
|---|---|---|
| Maximum Hardness (HRC) | ≤ 28 | ≤ 28 |
| Maximum H₂S Partial Pressure | 10 psi (70 kPa) | 10 psi (70 kPa) |
| Maximum Operating Pressure | Limited by code | Limited by code |
| SSC Resistance | Required and certified | Required and certified |
| NACE Region | 0, 1, 2, 3 | 0, 1, 2, 3 |
| Grade | Minimum Temperature | Maximum Continuous | Derating Begins |
|---|---|---|---|
| 2205 | -50°C (-58°F) | 300°C (572°F) | > 250°C |
| 2507 | -50°C (-58°F) | 300°C (572°F) | > 250°C |
Above 250°C, allowable stress values decrease. Consult ASME B31.3 for derating factors.
| OD (mm) | OD Tolerance (mm) | Wall Thickness Tolerance |
|---|---|---|
| 6.35 – 12.70 | ± 0.10 | ± 10% |
| 12.70 – 25.40 | ± 0.13 | ± 10% |
| 25.40 – 50.80 | ± 0.15 | ± 12.5% |
| 50.80 – 101.60 | ± 0.20 | ± 12.5% |
Need high pressure duplex pipe for a demanding application? We can 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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