Home > Duplex Steel > Duplex Steel Coils
Wai Nickel Alloys, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, specializes in high-quality Duplex Steel Coils designed for exceptional strength, corrosion resistance, and long-lasting durability. These coils are crafted using cutting-edge cold and hot rolling technology, ensuring a superior surface finish, precise dimensions, and impressive mechanical performance. By merging the advantages of both ferritic and austenitic stainless steels, Duplex Steel Coils offer remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. They are perfect for industrial and structural applications, finding extensive use in marine, petrochemical, and power generation sectors where reliability, formability, and strength are vital.
Duplex Steel Coils mainly consist of Chromium (21–23%), Nickel (4.5–6.5%), Molybdenum (2.5–3.5%), and a balanced amount of Iron, along with controlled additions of Nitrogen, Manganese, and Silicon. This unique dual-phase microstructure provides a tensile strength ranging from 700 to 900 MPa and a yield strength of about 450 MPa, blending high strength with excellent ductility and toughness. These coils are known for their outstanding resistance to chloride-induced corrosion, oxidation, and fatigue cracking, while remaining stable in both high and low temperatures. Their remarkable formability and weldability make them ideal for a variety of demanding industrial fabrication processes.
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Standard |
ASTM A240 / ASME SA240 |
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Thickness |
0.2mm – 5.0mm |
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Width |
3.2mm – 1500mm |
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Length |
AS PER CUSTOMER’S REQUIREMENT |
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Test Certificate |
Yes |
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Coils Hardness |
Half Hard, Quarter Hard, Soft, Hard, Spring Hard |
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Finish |
Hot rolled Coils (HR), Cold rolled Coils (CR), NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA. |
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Form |
Coil / Strip |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel Coils | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| Duplex Steel Coils | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.8 gm/cm3 | 0.318 lb/in3 |
At Wai Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Coils in Naypyidaw, Myanmar, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Myanmar, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Coils are extensively used in industries where strength, corrosion resistance, and cost-effectiveness are essential. In the oil and gas industry, they serve in pipelines, pressure vessels, and storage tanks that come into contact with seawater and corrosive fluids. The chemical and petrochemical sectors utilize them in heat exchangers, evaporators, and various process equipment. In the marine industry, they are perfect for shipbuilding, desalination plants, and coastal infrastructure. Additionally, Duplex Coils find applications in power generation, showcasing their versatility and reliability across multiple fields.
