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Super Duplex Steel Coils are highly durable and corrosion-resistant materials composed of a balanced mixture of austenitic and ferritic stainless steels, offering enhanced strength and resistance to pitting, crevice corrosion, and stress corrosion cracking. These coils find applications in demanding environments such as chemical processing, oil and gas, and marine industries, where resistance to aggressive chemicals and high temperatures is crucial. Super duplex steel coils are known for their excellent weldability and formability, making them versatile materials for various fabrication processes.
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| Super Duplex Steel Coils | 7.8 | 0.281 | 1350 | 2460 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex Steel Coils |
0.05 max | 1.00 max | 1.00 max | 0.030 max | 0.010 max | 24.00 – 26.00 | 3.00 – 4.00 | 6.00 – 8.00 | 0.20 – 0.30 | 57.61 min |
At PipingMart, we take pride in being the largest supplier and manufacturer in the UAE, offering cutting-edge solutions for all your piping needs. With state-of-the-art production plants strategically located in the UAE, we boast a vast inventory of over 25,000 tons of premium-quality materials readily available in stock.
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We offer These Super Duplex Steel Coils as per DIN, ISO, JIS or ANSI Standard.
Super Duplex Steel Coils applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Yes, super duplex steel coils can be welded using various welding techniques such as TIG (tungsten inert gas), MIG (metal inert gas), and SMAW (shielded metal arc welding). However, proper precautions must be taken due to their high alloy content. Pre-welding procedures, including pre-heating and post-weld heat treatment, may be necessary to prevent issues like sensitization and embrittlement. It’s essential to use appropriate filler metals and shielding gases to ensure the integrity and corrosion resistance of the weld joints. Following manufacturer recommendations and industry best practices is crucial to minimize the risk of weld-related defects and maintain the performance of super duplex steel coils.
Super duplex steel coils are suitable for a wide range of applications across industries such as oil and gas, chemical processing, marine, aerospace, power generation, desalination plants, construction, and mining. They are commonly used in manufacturing components such as pipelines, offshore platforms, pressure vessels, heat exchangers, pumps, valves, and architectural structures, where corrosion resistance, high strength, and durability are essential. These coils excel in harsh environments containing corrosive chemicals, seawater, high temperatures, and abrasive conditions, making them ideal for critical applications requiring reliable performance and extended service life.
Recommended welding techniques for joining super duplex steel coils include TIG (tungsten inert gas), MIG (metal inert gas), and SMAW (shielded metal arc welding). These methods provide flexibility for various thicknesses and applications. However, due to the alloy’s composition, careful consideration of pre-welding and post-weld heat treatment is essential to prevent issues like sensitization and maintain corrosion resistance. Choosing appropriate filler metals and shielding gases is crucial to ensure the integrity of weld joints. Following manufacturer recommendations and industry best practices is vital for successful welding, minimizing the risk of defects and ensuring the performance of super duplex steel coil welds.
Yes, there are special considerations for machining or fabrication of super duplex steel coils. These alloys have higher strength and work hardening rates than standard austenitic stainless steels. Therefore, machining processes should be conducted at lower speeds, with heavier cuts, and ample coolant to minimize work hardening and tool wear. Carbide tooling is recommended for machining operations, and post-machining treatments like stress relieving may be necessary to restore material properties. Additionally, thorough cleaning before fabrication is essential to remove contaminants that could affect weld quality or corrosion resistance.
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