When standard stainless steel fails, SS Duplex 2507 (UNS S32750) excels. As a leading supplier, Salem Stainless Steel Suppliers Pvt. Ltd., stocks high-performance Super Duplex alloys designed for the most demanding environments on earth from offshore rigs to high-acid chemical plants.
Alloy 2507 is a Super Duplex stainless steel with a high alloy content of 25% Chromium, 4% Molybdenum, and 7% Nickel. This specific chemistry provides a level of protection against chloride pitting and stress corrosion cracking that traditional 300-series steels simply cannot match.
Key Performance Advantages:
- Exceptional Yield Strength: Its high mechanical strength often allows engineers to use thinner material, significantly reducing the overall weight and cost of a project without sacrificing safety.
- Chloride Resistance: Virtually immune to chloride stress corrosion cracking (SCC), making it the gold standard for seawater applications.
- Thermal Efficiency: Offers high thermal conductivity paired with a low coefficient of thermal expansion.
- Pitting Resistance: The high Nitrogen and Molybdenum levels provide a massive PREN (Pitting Resistance Equivalent Number), ensuring durability in “hole” and “crevice” corrosion-prone areas.
Chemical Composition of SS Duplex 2507 (UNS S32750)
| Element | Symbol | Composition (Percentage) |
|---|---|---|
| Chromium | Cr | 24.0% – 26.0% |
| Nickel | Ni | 6.0% – 8.0% |
| Molybdenum | Mo | 3.0% – 5.0% |
| Manganese | Mn | 1.20% (Max) |
| Nitrogen | N | 0.24% – 0.32% |
| Silicon | Si | 0.80% (Max) |
| Carbon | C | 0.030% (Max) |
| Copper | Cu | 0.50% (Max) |
Mechanical Properties of SS Duplex 2507 Sheets:
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Tensile Strength (Min) | 800 MPa | 116,000 psi |
| Yield Strength (0.2% Offset) | 550 MPa | 80,000 psi |
| Elongation (in 50mm) | 15% | 15% |
| Hardness (Rockwell C) | 32 HRC (Max) | 32 HRC (Max) |
| Hardness (Brinell) | 310 HBW (Max) | 310 HBW (Max) |
Physical Properties of Duplex 2507 Sheets:
| Property | Value (Metric) |
|---|---|
| Density | 7.8 g/cm³ |
| Melting Range | 1350 – 1400 °C |
| Specific Heat | 480 J/kg-K |
| Thermal Conductivity | 14.2 W/m-K |
| Electrical Resistivity | 0.80 µΩ·m |
| Modulus of Elasticity | 200 GPa |
Technical Specifications & Applications of Duplex 2507 Stainless Steel Sheets:
While SS Duplex 2507 is incredibly tough, precision in application is key. To maintain its superior ductility and corrosion resistance, we recommend its use in environments below 570°F (300°C). Prolonged exposure to temperatures above this range can lead to a decrease in toughness (embrittlement). Our 2507 Super Duplex and 2205 Duplex sheets are sourced to meet the most stringent global standards.
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Core Applications of Duplex 2507 SS:
- Desalination Plants: High-pressure piping and seawater cooling.
- Petrochemical Processing: Heat exchangers and pressure vessels.
- Marine Industry: Propeller shafts, rudders, and offshore platforms.
- Pollution Control: Scrubber systems and flue gas desulfurization.
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Material Standards & Compliance SS Duplex 2507:
We ensure every product meets international benchmarks for safety and performance in high-pressure environments.
- Material Grade: 2507 Super Duplex (UNS S32750) / 2205 Duplex (UNS S31803/S32205)
- Standard Specifications: ASTM A240 / ASME SA240
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Dimensional Range & Versatility:
Our inventory is designed to support diverse industrial scales, from precision electronics to massive offshore structures.
- Width: 10mm to 2500mm
- Length: 2m, 2.44m, 3m, or custom-cut to your specific requirements.
- Forms Available: Coils, Foils, Shim Sheets, Perforated Sheets, Chequered Plates, Strips, Flats, and Precision Blanks/Rings.
- Premium Finishes: * Hot Rolled (HR) & Cold Rolled (CR)
- Surface Aesthetics: 2B, 2D, BA NO(8), and SATIN (available with Plastic Coating for protection).
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Chemical Composition of Duplex 2507:
| Grade | Ni (Nickel) | Cr (Chromium) | Mo (Moly) | N (Nitrogen) | Manganese (Mn) | Silicon (Si) | Carbon (C) | Sulfur (S) | Phosphorus (P) |
|---|---|---|---|---|---|---|---|---|---|
| Duplex 2205 | 4.5 – 6.5% | 22.0 – 23.0% | 3.0 – 3.5% | 0.14 – 0.20% | 2.0 max | 1.0 max | 0.03 max | 0.02 max | 0.03 max |
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Why Procurement Experts Trust Salem Stainless Steel Suppliers Pvt. Ltd.,
- Precision Sourcing: We supply materials originating from top-tier mills in India, Europe, Japan, and the US.
- Ready-to-Ship Inventory: We maintain a massive stock of 2507 Super Duplex Sheets to ensure zero lead-time delays for your critical projects.
- Customization: Whether you need a simple 2205 Strip or a complex Perforated 2507 Plate, our processing center delivers to your exact blueprint.
Enhance Your Infrastructure Today
Don’t compromise on material integrity. Use the “Super” advantage of 2507 for your next desalination, chemical, or marine project.
Countries We Export
Macau, Philippines, Estonia, Slovakia, India, Switzerland, France, Gambia, United States, Nepal, Iran, Australia, Thailand, Gabon, Zimbabwe, Bangladesh, Angola, Lithuania, Kuwait, Kazakhstan, Trinidad & Tobago, Puerto Rico, Singapore, Mexico, Azerbaijan, Brazil, Bulgaria, United Arab Emirates, Tibet, Greece, South Africa, Afghanistan, Sri Lanka, Italy, China, Serbia, Turkey, Mexico, Bolivia, Peru, Chile, Belarus, Yemen, Namibia, Qatar, Algeria, Libya, Nigeria, Japan, Poland, Austria, Bhutan, Nigeria, Portugal, Czech Republic, Croatia, Jordan, Hungary, Finland, Pakistan, Spain, South Korea, Ecuador, Denmark, Canada, Kenya, Saudi Arabia, Vietnam, Sweden, Malaysia, Bahrain, Costa Rica, Venezuela, Israel, Netherlands, United Kingdom, New Zealand, Russia, Morocco, Poland, Indonesia, Hong Kong, Egypt, Oman, Norway, Chile, Iran, Lebanon, Taiwan, Ghana, Romania, Mongolia, Ukraine, Colombia, Tunisia, Ireland, Iraq, Belgium, Argentina, Germany.
Cities We Supply
Calgary, Al Jubail, Hong Kong, Bhopal, Jeddah, Toronto, Ulsan, Aberdeen, Thiruvananthapuram, Petaling Jaya, Nashik, Houston, Montreal, Cairo, Ernakulam, Atyrau, Karachi, Haryana, Istanbul, Jakarta, Sharjah, Nagpur, Dallas, Ranchi, Algiers, Doha, Santiago, Geoje-si, Singapore, Chennai, Jamshedpur, Perth, New Delhi, Tehran, Vadodara, New York, Caracas, Ahmedabad, Edmonton, Kanpur, Busan, Mumbai, Secunderabad, Bengaluru, Kolkata, Pimpri-Chinchwad, Manama, Vung Tau, Melbourne, Bangkok, Colombo, Ankara, Bogota, Sydney, Milan, Port-of-Spain, Abu Dhabi, Thane, Ahvaz, Visakhapatnam, Rajkot, Jaipur, Indore, Kuwait City, Gurgaon, Baroda, Navi Mumbai, La Victoria, Surat, Ludhiana, Lahore, Hanoi, Riyadh, Faridabad, Hyderabad, Coimbatore, Mexico City, Dubai, Al Khobar, Rio de Janeiro, Pune, Chiyoda, Moscow, Lagos, London, Madrid, Granada, Ho Chi Minh City, Brisbane, Chandigarh, Seoul, Courbevoie, Los Angeles, Gimhae-si, Dammam, Howrah, Muscat, Noida, Kuala Lumpur, Pondicherry, Tamil Nadu.
