Duplex Steel Coils
Duplex Steel Coils
Pearl Steel Industry is a trusted Supplier and stockist of duplex steel coils in India, catering to diverse industrial applications. A duplex steel coil is a rolled form of duplex stainless steel – an alloy with a balanced microstructure of austenitic and ferritic phases. This dual-phase configuration imparts remarkable strength, excellent corrosion resistance, and superior weldability, making it ideal for use in demanding environments.
Compared to austenitic stainless steels, duplex stainless steels like UNS S32205, UNS S32750, and Duplex UNS S32205 contain higher levels of chromium, molybdenum, and nitrogen. These compositions provide exceptional resistance to stress corrosion cracking, especially in chloride-rich conditions, making them essential in offshore, chemical, and desalination plants.
Manufacturing Process of Duplex Steel Coils at Pearl Steel Industry
At Pearl Steel Industry, we follow stringent procedures to ensure our duplex steel coils meet global quality standards:
- Reheating Furnace: Steel billets are heated to precise rolling temperatures.
- Scale Breaker: Surface oxides are removed with vertical rolls and high-pressure water jets.
- Finish Rolling: Coils are hot or cold rolled to achieve the required thickness and surface finish.
- Cooling (Quenching): Coils are rapidly cooled to set mechanical properties.
- Skin Pass Mill: Enhances surface quality and improves mechanical properties like deep-draw strength.
- Marking & Packing: Coils are labeled and packed to prevent handling damage and ensure product traceability.
Specifications of Duplex Steel Coils
Pearl Steel Industry offers duplex steel coils conforming to various international standards. Below are our general specifications:
- Material Grade: Available in SAF 2205 (UNS S31803/S32205), SAF 2507 (UNS S32750), and other super duplex steel coils.
- Chemical Composition: Balanced levels of Cr, Ni, Mo, and N deliver enhanced strength and corrosion resistance.
- Dimensions: Customizable coil thickness and coil width for various applications.
- Surface Finish: Options include 2B, BA, or custom finishes depending on aesthetic and functional needs.
- Heat Treatment: Includes annealing/solution annealing to stabilize duplex structure.
- Standards: Compliant with ASTM A240/A240M, EN 10088, ASME, and DIN standards.
- Tolerance: Tight dimensional tolerance as per industry norms.
- Testing & Inspection: Includes chemical analysis, mechanical testing, and NDT methods like ultrasonic and eddy current testing.
Equivalent Grades of Duplex Steel Coils
We supply duplex steel coils in multiple international equivalent grades:
- ASTM/ASME: ASTM A240/A240M standard covers duplex stainless steel grades like UNS S31803/S32205 and UNS S32750.
- EN/DIN Standards:
- EN 1.4462 – Equivalent to UNS S31803/S32205.
- EN 1.4410 – Corresponds to UNS S32750 Equivalent and other super duplex steel coils.
- Nickel Alloys: Available through our network as a reliable nickel coils supplier and stockist.
- EN 1.4462 – Equivalent to UNS S31803/S32205.
Why Choose Pearl Steel Industry for Duplex Steel Coils?
Pearl Steel Industry is one of the leading duplex steel ASTM A240/A240M coils stockists and nickel coils supplier in India. With an emphasis on consistent quality, our coils are manufactured with advanced technology and strict quality control. We supply industrial stainless steel coils and duplex stainless steel coils that meet or exceed client expectations in terms of durability, performance, and corrosion resistance.
Our inventory includes premium grades such as UNS S32750 Equivalent, Duplex UNS S32205, and EN 1.4462, suitable for diverse sectors, including oil & gas, pulp and paper (we also supply stainless steel coils for pulp machinery), desalination, and petrochemical industries.
Get in Touch
Looking for premium-grade duplex steel coils in India? Partner with Pearl Steel Industry – your trusted source for UNS S32205, UNS S32750, and super duplex steel coils. Our team is ready to assist you with technical specifications, custom orders, and fast delivery.