Duplex Steel S31803 Coils are among the most versatile and reliable materials used in a wide range of industrial sectors today. Meta Aerospace, a reputable name in the metal industry, specializes in supplying Duplex Steel S31803 Coils to meet the growing demands of various applications. With its unique combination of corrosion resistance, high tensile strength, and excellent weldability, Duplex Steel S31803 is a preferred material for industries that require superior performance in challenging environments.

What are Duplex Steel S31803 Coils?

Duplex Steel S31803 Coils are made from a combination of austenitic and ferritic stainless steel, offering a balanced microstructure of both phases. This unique structure provides Duplex Steel S31803 with an exceptional mix of strength, corrosion resistance, and durability. Unlike regular stainless steels, Duplex Steel S31803 Coils offer better resistance to stress corrosion cracking and pitting corrosion, which makes them ideal for use in marine, chemical, and other aggressive environments. These coils are used extensively in industries requiring both high strength and resistance to extreme conditions.

Duplex Steel S31803 Coils, Duplex Steel S31803 Coils Manufacturers, Duplex Steel S31803 Coils Suppliers, Duplex Steel S31803 Coils Stockists, Duplex Steel S31803 Coils Exporters

The primary advantage of Duplex Steel S31803 Coils is their superior mechanical properties. They possess high tensile strength, which is approximately twice that of conventional austenitic steels, making them suitable for high-pressure applications. Additionally, Duplex Steel S31803 offers excellent resistance to corrosion, especially in chloride-rich environments, making it a preferred choice for marine and offshore industries. The combination of ferrite and austenite phases also enhances the toughness and weldability of the material, making it easier to work with during fabrication and installation.

Furthermore, Duplex Steel S31803 Coils are known for their cost-effectiveness due to their ability to perform in harsh conditions, reducing the need for frequent maintenance or replacement. This contributes to long-term savings for businesses using the material in critical applications.

Uses and Applications Duplex Steel S31803 Coils?

Duplex Steel S31803 Coils Manufacturers use this material in various applications that require both high strength and corrosion resistance. For instance, it is commonly used in the chemical processing industry for constructing heat exchangers, pressure vessels, and pipelines, where exposure to aggressive chemicals and high temperatures is a concern. The coils are also used in the manufacture of desalination plants, where resistance to seawater corrosion is crucial. Duplex Steel S31803’s ability to withstand harsh conditions in marine and offshore structures makes it a perfect material for shipbuilding, offshore oil rigs, and other maritime applications.

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Another significant application of Duplex Steel S31803 Coils is in the oil and gas industry. It is used to fabricate parts for subsea pipelines, risers, and other equipment that require resistance to corrosion from both seawater and chemicals. The coils’ high tensile strength ensures that components made from Duplex Steel S31803 can withstand the pressure and mechanical stresses experienced during offshore drilling operations.

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In addition, Duplex Steel S31803 Coils are widely used in food processing and pharmaceutical industries for manufacturing equipment such as storage tanks, mixing vessels, and reactors. The high resistance to pitting and crevice corrosion ensures that the material maintains its integrity even when exposed to aggressive cleaning agents or harsh operating conditions.

Furthermore, Duplex Steel S31803 Coils are increasingly being used in the automotive industry for applications that require materials with superior strength and resistance to fatigue. Components such as exhaust systems, catalytic converters, and other high-performance parts benefit from the durability and resistance offered by Duplex Steel S31803.

What Are Specification Duplex Steel S31803 Coils?

Grades Duplex Steel – UNS NO. S 31803
Standards ASTM, ASME and API
Specifications ASTM A 240/ ASME SA 240
Size 1 MM TO 200 MM THK IN 1000 MM TO 3000 MM WIDTH x 2500 MM / 5000 MM / 10000 MM / COIL.
Finish Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
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)

Equivalent material Of Duplex Steel S31803 Coils?

Standard UNS WERKSTOFF NR.
Duplex Steel(S31803) S31803 1.4462

Chemical Composition Of Duplex Steel S31803 Coils?

Grade C Mn Si P S Cr Mo Ni N
S31803 0.03 max 2.0 max 1.0 max 0.03 max 0.02 max min: 21.0
max: 23.0
min: 2.5
max: 3.5
min: 4.5
max: 6.5
min: 0.08
max: 0.20

Mechanical Properties Of Duplex Steel S31803 Coils?

Grade Tensile Strength ksi (min) Yield Strength 0.2% ksi (min) Hardness (HB) MAX Elongation %
S31803 90 65 217 25

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