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 | Duplex Stainless Steel Pipe S32760 ，2507 Duplex Stainless Steel Pipe ，Super Duplex 2507 Pipe Anti Corrosion | ||
2507 super duplex stainless steel pipe is a high-performance duplex grade with a two-phase microstructure consisting of approximately 50% austenite and 50% ferrite. It belongs to the super duplex family and offers exceptional strength combined with outstanding corrosion resistance.
With a Pitting Resistance Equivalent Number (PREN) exceeding 41, 2507 provides superior resistance to pitting, crevice corrosion, and stress corrosion cracking in the harshest environments, including high chloride and sour service conditions.
| Parameter | Details |
|---|---|
| Standard | ASTM A790, A789, ASME SA790, EN 10216-5, EN 10217-7 |
| Grade | 2507 (UNS S32750, UNS S32760) |
| Size (OD) | 6.0 mm – 610 mm (1/8" – 24") |
| Wall Thickness | 0.5 mm – 25.0 mm |
| Length | 3000 mm, 6000 mm, random lengths (custom cut available) |
| Process | Seamless (cold drawn / cold rolled) or Welded (ERW / EFW) |
| Surface Finish | Mill finish, Pickled, Annealed, Polished |
| Element | UNS S32750 | UNS S32760 |
|---|---|---|
| Carbon (C) | ≤ 0.030 | ≤ 0.030 |
| Silicon (Si) | ≤ 0.80 | ≤ 1.00 |
| Manganese (Mn) | ≤ 1.20 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.035 | ≤ 0.030 |
| Sulfur (S) | ≤ 0.020 | ≤ 0.010 |
| Chromium (Cr) | 24.0 – 26.0 | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 | 3.0 – 4.0 |
| Nitrogen (N) | 0.24 – 0.32 | 0.20 – 0.30 |
| Tungsten (W) | — | 0.50 – 1.00 |
| Copper (Cu) | — | 0.50 – 1.00 |
| Iron (Fe) | Balance | Balance |
UNS S32760 contains small additions of tungsten and copper for enhanced corrosion resistance.
| Property | UNS S32750 | UNS S32760 |
|---|---|---|
| Tensile Strength | ≥ 730 MPa (≥ 106 ksi) | ≥ 730 MPa (≥ 106 ksi) |
| Yield Strength (0.2% offset) | ≥ 550 MPa (≥ 80 ksi) | ≥ 550 MPa (≥ 80 ksi) |
| Elongation | ≥ 20% | ≥ 25% |
| Hardness (Brinell) | ≤ 310 HB | ≤ 310 HB |
| Hardness (Rockwell C) | ≤ 32 HRC | ≤ 32 HRC |
| Impact Strength (Charpy V-notch) | ≥ 100 J at -40°C | ≥ 100 J at -40°C |
Note: The values above are for reference only. Please refer to the mill test certificate for actual data.
| Property | Value |
|---|---|
| Density | 7.8 g/cm³ |
| Modulus of Elasticity | 200 GPa (29,000 ksi) |
| Thermal Conductivity (20°C) | 15 W/m·K |
| Specific Heat (0-100°C) | 480 J/kg·K |
| Electrical Resistivity | 800 μΩ·m |
| Magnetic Permeability | Magnetic |
| PREN (Pitting Resistance Equivalent) | ≥ 41 |
Ultra High Strength – Yield strength of 550 MPa minimum (approximately 2.5x that of 316)
Superior Pitting Resistance – PREN ≥ 41, far exceeding standard duplex and austenitic grades
Excellent Chloride Resistance – Withstands high chloride environments including seawater
Stress Corrosion Cracking Resistance – Immune to chloride SCC under most conditions
Good Weldability – Can be welded with proper procedures and matching filler metals
High Thermal Conductivity – Better heat transfer than austenitic stainless steels
Low Thermal Expansion – Reduces thermal cycling stress in piping systems
| Property | 2507 Super Duplex | 2205 Duplex | 316 Austenitic | 904L Austenitic |
|---|---|---|---|---|
| Yield Strength (MPa) | ≥ 550 | ≥ 450 | ≥ 205 | ≥ 220 |
| PREN | ≥ 41 | 33 – 35 | 23 – 25 | 32 – 35 |
| SCC Resistance | Excellent | Excellent | Poor | Good |
| Pitting Resistance | Superior | Good | Fair | Good |
| Seawater Service | Yes (full immersion) | Limited | No | Yes (with care) |
| Weldability | Moderate | Good | Excellent | Good |
| Cost | Very High | Moderate | Low | High |
| Maximum Operating Temperature | 300°C | 300°C | 425°C | 300°C |
2507 super duplex stainless steel pipe is specified for the most demanding environments:
Oil & Gas
Subsea pipelines and risers (deepwater)
Sour service piping (H₂S containing)
Downhole tubing and casing
Christmas trees and wellhead components
Offshore platform topside piping
Umbilical tubing
Marine & Seawater Systems
Seawater cooling piping
Ballast water systems
Firewater lines
Desalination plant high pressure piping
Shipboard seawater systems
Offshore ballast lines
Chemical & Petrochemical
High chloride chemical processing
Acetic and formic acid handling
Bleach plant piping
Heat exchanger tubing
Reactor vessels
Distillation columns
Pulp & Paper
Bleach plant washers and filters
Chlorine dioxide systems
High temperature black liquor recovery
Power Generation
Flue gas desulfurization (FGD) scrubbers
Condenser tubing in seawater cooled plants
Geothermal power piping
Nuclear power auxiliary systems
Mining & Mineral Processing
High chloride slurry pipelines
Acid leaching circuits
Pressure oxidation autoclaves
Pharmaceutical & Food
High purity brine systems
Salt and chlorinated water handling
| Process | Recommendation |
|---|---|
| Welding | Use matching filler metal (2509). Strictly control heat input (0.5-2.0 kJ/mm). Maintain interpass temperature below 150°C. |
| Bending | Minimum bend radius of 4x OD for cold bending. Use mandrel for tight radii. Hot bending requires solution annealing afterward. |
| Cutting | Use abrasive saw or cold saw. Do not use thermal cutting. |
| Machining | More difficult than austenitic grades. Use rigid setups, positive rake angles, and lower cutting speeds. |
| Heat Treatment | Solution anneal at 1070-1120°C followed by water quenching. Do not stress relieve. |
| Forming | Requires higher force than austenitic grades due to higher strength. Springback is significant. |
| Consideration | Details |
|---|---|
| Maximum Operating Temperature | 300°C (572°F) – prolonged exposure above this can cause embrittlement |
| Minimum Operating Temperature | -50°C (-58°F) – adequate toughness down to this range |
| Hydrogen Embrittlement | Not suitable for high pressure hydrogen service |
| Welding Criticality | Requires skilled welders and strict procedure control |
| Lead Time | Longer than standard grades due to specialized manufacturing |
Need a super duplex solution for an extreme environment? We can help.
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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