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Sayam Nickel Alloys is a reputed manufacturer and supplier of Duplex Steel Coil in Hyderabad, offering high-strength and corrosion-resistant materials for demanding industrial applications. Produced using advanced rolling and finishing techniques, these coils provide excellent surface quality, uniform thickness, and consistent mechanical performance. Sayam Nickel Alloys adheres to strict quality control procedures and international standards to ensure reliability and durability. Their duplex steel coils are widely trusted in industries that require superior strength, resistance to corrosion, and long service life under challenging operating conditions.
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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 |
Duplex Steel Coil features a balanced microstructure of austenite and ferrite, typically in equal proportions. The composition includes chromium, nickel, molybdenum, and nitrogen, which enhance corrosion resistance and mechanical strength. High chromium and molybdenum content provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Mechanically, duplex steel coils offer higher yield strength than conventional austenitic steels, good tensile strength, and excellent toughness, maintaining performance in both high-pressure and moderate-temperature environments.
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Duplex Steel Coil is extensively used in industries where strength and corrosion resistance are critical. Common applications include chemical processing equipment, oil and gas pipelines, heat exchangers, pressure vessels, and storage tanks. It is also used in marine structures, desalination plants, pulp and paper industries, and offshore platforms. Due to its excellent resistance to chlorides and harsh environments, duplex steel coil is ideal for structural components, cladding, and fabrication of pipes and fittings. Its durability and cost efficiency make it suitable for long-term industrial use.
