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Stainless Steel Duplex S32750 Plates Manufacturers In India

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By Author: Naresh Kanugo
Total Articles: 14
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Super Duplex Steel UNS S32750 Sheets, also known as UNS S31803/S32205 or simply duplex stainless steel sheets, are a type of stainless steel alloy that offers a combination of beneficial properties derived from both austenitic and ferritic stainless steels. This particular grade, S32750, is characterized by its high chromium (Cr) and molybdenum (Mo) content, which enhances its corrosion resistance and mechanical strength. Here's a comprehensive overview of these sheets.
Composition and Structure Duplex stainless steel S32750 typically contains approximately 22% chromium, 5-6% nickel, 3% molybdenum, and 0.15-0.20% nitrogen, along with smaller amounts of other elements such as manganese and nitrogen. This balanced composition results in a two-phase microstructure consisting of roughly equal proportions of austenite and ferrite, hence the term "duplex." This dual-phase structure contributes to its exceptional combination of mechanical strength and corrosion resistance.
Corrosion Resistance One of the most notable attributes of duplex stainless steel S32750 sheets is their superior corrosion resistance. The high chromium ...
... and molybdenum content provide excellent resistance to various corrosive environments, including chloride-rich and acidic conditions. This makes them suitable for a wide range of applications in industries such as chemical processing, marine engineering, oil and gas, and desalination plants, where corrosion resistance is paramount.

Mechanical Properties Duplex stainless steel S32750 offers impressive mechanical properties, including high tensile strength, good ductility, and toughness, which make it suitable for demanding structural applications. These sheets exhibit superior fatigue strength and stress corrosion cracking resistance compared to conventional austenitic stainless steels, making them ideal for use in structural components subjected to dynamic loads and harsh environments.

Weldability While duplex stainless steel S32750 is generally weldable using common welding techniques such as gas tungsten arc welding (GTAW), shielded metal arc welding (SMAW), and gas metal arc welding (GMAW), it is essential to employ appropriate procedures to avoid detrimental effects on its corrosion resistance and mechanical properties. Preheating and post-weld heat treatment may be necessary to minimize the risk of sensitization and ensure optimal weld integrity.

Applications Due to its exceptional combination of properties, duplex stainless steel S32750 sheets find numerous applications across various industries. These include but are not limited to Chemical and Petrochemical Processing: Tanks, piping, heat exchangers, and other equipment exposed to corrosive chemicals. Marine and Offshore Engineering Structural components, pipelines, and equipment for offshore platforms and vessels. Oil and Gas Industry Downhole tubing, pipelines, and components for sour gas environments. Desalination Plants Pressure vessels, evaporators, and heat exchangers for seawater desalination processes.

Super Duplex Steel UNS S32750 Sheets offer a compelling combination of corrosion resistance, mechanical strength, and weldability, making them a versatile choice for a wide range of demanding applications in harsh environments. Their superior performance and durability make them an indispensable material in various industries where reliability and longevity are paramount.

Specification/Grades of Super Duplex Steel UNS S32750 Sheets
Specifications ASTM A240 / ASME SA240
Thickness 4mm-100mm
Width 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hairline, sand
blast, Brush, etching, etc

Finish Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc

Contact Person: Naresh Kanugo
Phone: +91-9819767456
Email: sales@svstainless.com

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