Home > Duplex Steel > Duplex Steel S31803 Sheet and Plates
Xuan Nickel Alloys stands out as a top-notch manufacturer and supplier of Duplex Steel S31803 Sheets and Plates right in Da Nang, Vietnam. We take pride in delivering high-quality duplex stainless steel products that are specifically designed to thrive in tough industrial settings. Our Duplex Steel S31803 Sheets and Plates blend the robust strength of ferritic stainless steel with the exceptional corrosion resistance of austenitic stainless steel, guaranteeing durability and a long lifespan. Crafted with precision and in line with international standards, these sheets and plates offer remarkable mechanical performance, precise dimensions, and dependable reliability. We cater to various industries, including chemical processing, oil and gas, petrochemical, and marine, providing high-performance, cost-effective solutions on a global scale.
The composition of Duplex Steel S31803 Sheets and Plates includes around 22% chromium, 5-6% nickel, 3% molybdenum, and trace amounts of nitrogen, resulting in a well-balanced ferritic-austenitic microstructure. They boast impressive tensile and yield strength, outstanding toughness, and excellent resistance to stress corrosion cracking. This alloy also shows remarkable resistance to pitting and crevice corrosion, especially in environments rich in chlorides and acids. With good weldability, formability, and long-term stability, Duplex Steel S31803 Sheets and Plates maintain their structural integrity and reliable performance even under thermal, mechanical, and chemically aggressive conditions.
Specifications : ASTM A240 / ASME SA240
Dimensions : ASTM, ASME, and API
Width : 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Thickness : 4mm-100mm
Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface Finish : 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc
Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Form : Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
At Xuan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex S31803 Sheets and Plates in Da Nang, Vietnam, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Vietnam, 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.
These sheets and plates are widely utilized in industries that demand high-strength, corrosion-resistant, and durable materials. In the realm of chemical processing, they find applications in tanks, reactors, heat exchangers, and piping systems that handle aggressive media. The oil and gas sector employs them for offshore platforms, pipelines, and subsea systems that are exposed to seawater and sour gas. Petrochemical facilities use them in process equipment, evaporators, and condensers. In marine applications, they are essential for desalination plants, seawater handling systems, and shipbuilding. Their unique combination of mechanical strength and corrosion resistance makes them a go-to choice for various demanding applications.
