Salem Stainless Steel is a premier merchandizer, stockist, and exporter of high-grade stainless steel Duplex coils, sheets, and plates. Based in Chennai, India, we specialize in delivering superior corrosion resistance and high-tensile strength solutions to industries worldwide.
Known for their longer service life and cost efficiency, SS Duplex coils are an ideal choice for industries that demand strength, durability, corrosion resistance, and reliability-ideal for demanding applications in oil & gas, chemical processing, marine, and construction industries. Our well-organized inventory and strong logistics network enable us to deliver Duplex coils safely and on time to both domestic and international clients at competitive prices.
Stainless steel Duplex coils supplied by us are available in a wide range of sizes, thicknesses, and surface finishes. To ensure maximum customer satisfaction, we also offer customization options as per specific application requirements. Each SS Duplex coil undergoes strict quality inspection to ensure dimensional accuracy, surface quality, and consistent performance.
| Element | Symbol | Percentage(%) |
|---|---|---|
| Chromium | Cr | 21.0 – 23.0 |
| Nickel | Ni | 4.5 – 6.5 |
| Molybdenum | Mo | 2.5 – 3.5 |
| Nitrogen | N | 0.08 – 0.20 |
| Manganese | Mn | 2.0 max |
| Carbon | C | 0.03 max |
Mechanical Properties of Stainless Steel Duplex Coils
| Property | Value (Metric) |
|---|---|
| Tensile Strength | 620 MPa (min) |
| Yield Strength ( 0.2 %) | 450 MPa (min) |
| Elongation (in 50mm) | 25% |
| Hardness (Brinell) | 293 HBW (max) |
| Impact Energy | 100 J -40 |
Physical Properties of Duplex SS Coils:
| Property | Value (typical) |
|---|---|
| Density | ≈ 7.8 g/cm³ |
| Modulus of Elasticity (E) | ≈ 200 GPa |
| Thermal Conductivity | ≈ 15–19 W/m·K at 100 °C |
| Coefficient of Thermal Expansion (20-100°C) | ≈ 13.5–14.0 × 10⁻⁶ /°C (0–300 °C) |
| Electrical Resistivity | ≈ 0.85–0.90 × 10⁻⁶ Ω·m |
| Magnetism | Magnetic (weakly) |
| Microstructure | ~50% austenite + 50% ferrite |
Product Specifications:
| Property | Options/Sizes |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Size | 1250 mm × 2500 mm, 1500 mm × 3000 mm, 2000 mm × 6000 mm |
| Length | 4.0 mm – 100 mm (thickness range) |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard, etc. |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Mill with Plastic Coated) |
Applications of SS Duplex Coils
- Chemical and petrochemical industries
- Oil and gas processing equipment
- Marine and offshore structures
- Heat exchangers and pressure vessels
- Heat exchangers and pressure vessels
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.
