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Help Center2205 Duplex Stainless Steel Coil 2.0mm Thick S31803 Standard for Oil & Gas
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer our premium 2205 Duplex Stainless Steel Coil 2.0mm Thick S31803 Standard, specifically engineered for the demanding oil and gas industry. With a robust combination of high strength and exceptional corrosion resistance, this duplex coil delivers reliable performance in harsh environments, including offshore platforms, pipelines, and pressure vessels. As a trusted supplier established in 2025 with an annual export value exceeding US$50 million, we ensure consistent quality and timely delivery to global markets.
Our 2205 duplex stainless steel coil is manufactured to the stringent ASTM A240 / ASME SA240 standard, offering a balanced microstructure of ferrite and austenite. This unique composition provides nearly double the yield strength of conventional 316L stainless steel, while maintaining excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. The 2.0mm thickness is ideal for medium-duty applications where weight reduction and durability are critical.
Key Features & Technical Specifications
- High Strength: Yield strength ≥ 450 MPa (65 ksi) – significantly higher than austenitic grades.
- Outstanding Corrosion Resistance: PREN (Pitting Resistance Equivalent Number) ≥ 35, suitable for chloride-rich environments.
- Excellent Weldability: Low carbon content (≤0.03%) minimizes carbide precipitation during welding.
- Wide Operating Temperature Range: -50°C to 300°C, ideal for both cryogenic and elevated temperature services.
- Customizable Dimensions: Width and coil weight can be tailored to meet specific project requirements.
| Parameter | Value |
|---|---|
| Grade | 2205 (UNS S31803) |
| Thickness | 2.0 mm |
| Tensile Strength | ≥ 680 MPa (99 ksi) |
| Elongation | ≥ 25% |
| Hardness (HRC) | ≤ 32 |
| Surface Finish | 2B, BA, No.1 (optional) |
Benefits for Your Application
- Reduced Weight: Higher strength allows thinner gauges, lowering material costs and structural load.
- Longer Service Life: Superior corrosion resistance reduces maintenance and replacement frequency.
- Versatile Fabrication: Excellent formability and weldability simplify manufacturing processes.
- Global Compliance: Meets international standards for oil & gas, chemical, and marine applications.
At Hemaokang Steel, we leverage our ISO9001:2015 certified quality management system to ensure every coil meets rigorous specifications. With a dedicated team of 51-100 experienced professionals, we handle orders from small batches to bulk shipments, covering markets across North America, South America, Europe, Asia, Africa, and Oceania. Our annual export value of US$50-100 million reflects our commitment to reliability and customer satisfaction.
We invite you to experience the performance of our 2205 duplex stainless steel coil. Contact our sales team for a competitive quotation, technical datasheet, or sample testing. Choose Hemaokang Steel as your long-term partner for high-quality stainless steel products.
Frequently Asked Questions
-
What is the minimum order quantity (MOQ) for this coil?
Our MOQ is typically 5 tons, but we can discuss smaller quantities for trial orders. -
How long is the delivery time?
Standard delivery is 15-25 working days after order confirmation, depending on quantity and customization. -
Can you provide mill test certificates?
Yes, we issue MTC (Mill Test Certificate) per ASTM A240 for every batch. -
Is this coil suitable for welding without post-weld heat treatment?
Yes, 2205 duplex stainless steel has excellent weldability and typically does not require PWHT for common applications. -
What is the difference between S31803 and S32205?
S32205 has tighter composition control (higher nitrogen), but both are often interchangeable. Our product meets both standards. -
Can the coil be supplied in different widths?
Yes, we offer customizable widths from 1000 mm to 2000 mm. -
How does the corrosion resistance compare to 316L?
2205 has significantly higher pitting and stress corrosion cracking resistance, especially in chloride environments. -
Do you offer third-party inspection services?
Yes, we can arrange inspection by SGS, BV, or other accredited agencies upon request.
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