Duplex steel stands out in manufacturing circles due to its exceptional robustness, endurance, and resistance to corrosion. Among the most prevalent variants are S31803 and S32205. These alloys find extensive utility across diverse sectors such as chemical processing, oil exploration, marine construction, and infrastructure development. S31803 Duplex Steel boasts a dual-phase microstructure comprising austenitic and ferritic phases, delivering superior protection against corrosion and chloride stress cracking compared to its stainless steel counterparts.
S32205 Duplex Steel, enriched with nitrogen, exhibits heightened resistance to pitting, crevice, and erosion corrosion. Its superior toughness and flexibility make it apt for high-stress environments, particularly in chemical processing, oil exploration, and marine engineering. S32205 coils excel in heat exchangers, pressure vessels, and storage tanks, offering resilience against harsh conditions and elevated temperatures. Their ability to withstand seawater corrosion and abrasion further enhances their utility in marine applications.
The advantages of duplex steel coils extend to their exceptional strength, durability, and corrosion resistance, coupled with their ability to endure extreme temperatures and environments, making them indispensable for demanding applications. Moreover, their ease of fabrication and welding streamlines installation processes, translating into cost efficiencies for manufacturers and end-users alike. Furthermore, their resistance to stress corrosion cracking and crevice corrosion underscores their suitability for critical operations in chemical and petrochemical sectors.
S31803 and S32205 duplex steel coils are versatile solutions characterized by their superior strength, durability, and corrosion resistance, finding widespread use across various industries. When procuring these coils, selecting a reputable supplier is paramount to ensure quality and reliability. Shree Venktesh Wires and Steels Pvt Limited is a trusted name in the industry, renowned for manufacturing and supplying top-notch Duplex Steel Coils.
Utilizing premium raw materials, their coils boast enhanced corrosion and oxidation resistance, ensuring prolonged service life across diverse industrial settings. With a range of finishes including hot rolled, cold-rolled, and satin, Shree Venktesh Wires and Steels Pvt Limited prioritizes product quality, offering a diverse array of Duplex UNS S31803 / UNS S32205 Perforated Sheets and ERW Pipes to cater to varied requirements.
Specification/Grades of SS Duplex & Super Duplex Coils
| 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. |
SS Duplex & Super Duplex Coils Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| DSS 2205 | 1.4462 | S32205 |