Super Duplex 2507 Pipes & Tubes are one of the most advanced stainless steel grades developed for extreme strength, durability, and corrosion resistance. At Neonox Overseas, we specialize in offering high-quality Super Duplex UNS S32750 / EN 1.4410 pipes and tubes, engineered to meet the most demanding industrial applications. This material is a combination of austenitic and ferritic stainless steel structures, giving it exceptional mechanical strength and resistance to stress corrosion cracking, crevice corrosion, and pitting. With a balanced microstructure, Super Duplex 2507 is twice as strong as conventional stainless steels such as 304 or 316, while maintaining superior toughness and weldability.
These pipes and tubes are widely used in industries that require long-lasting performance under harsh conditions, such as oil and gas exploration, subsea equipment, offshore platforms, chemical processing, heat exchangers, desalination plants, pulp and paper industries, and marine engineering. The alloy contains high amounts of chromium (25%), molybdenum (4%), and nickel (7%), which makes it particularly resistant to chloride-rich environments and high saline water, making it a first choice for seawater applications.
Neonox Overseas supplies Super Duplex 2507 Pipes & Tubes in various forms including seamless, welded, ERW, fabricated, and EFW construction, available in both round, square, and rectangular shapes. The dimensions range from 6 mm to 610 mm OD, with wall thicknesses between 0.5 mm to 50 mm, and lengths up to 12 meters or as per customer requirements. These pipes and tubes are manufactured under strict quality standards such as ASTM A789, ASTM A790, ASTM A928, ASME SA789, and SA790.
From a mechanical standpoint, Super Duplex 2507 Pipes & Tubes deliver outstanding performance, with tensile strength exceeding 800 MPa, yield strength of 550 MPa minimum, elongation around 25%, and Brinell hardness below 310 HB. The density is 7.8 g/cm³, and the alloy can withstand temperatures up to 300°C in continuous service. Despite its strength, it offers good weldability and machinability when handled with proper procedures.
At Neonox Overseas, we maintain a large inventory of Super Duplex 2507 pipes and tubes to ensure timely delivery to global clients. Our products undergo rigorous testing including PMI, ultrasonic testing, hydro testing, IGC test, and third-party inspections to guarantee quality. We serve clients across industries in Europe, Asia, Middle East, Africa, and the Americas, providing both standard and customized solutions.
Choosing Super Duplex 2507 from Neonox means choosing a product with proven durability, superior resistance to aggressive environments, and compliance with international quality standards. Whether it’s for critical offshore applications, chemical processing equipment, or desalination plants, our Super Duplex 2507 Pipes & Tubes deliver unmatched performance and reliability.
| Property | SS 304 | SS 304L | SS 304H | SS 304LN | Duplex 2205 | Super Duplex 2507 | Nickel Alloys (Alloy 200/201) |
|---|---|---|---|---|---|---|---|
| UNS Number | S30400 | S30403 | S30409 | S30453 | S32205 / S31803 | S32750 | N02200 / N02201 |
| EN Number | 1.4301 | 1.4307 | 1.4948 | 1.4311 | 1.4462 | 1.4410 | 2.4066 / 2.4068 |
| Standards | ASTM A312 / A213 / A269 / A358 / A249 / A554 | ASTM A789 / A790 | ASTM A789 / A790 / A928 | ASTM B161 / B163 / B165 | |||
| Forms | Seamless, Welded, ERW, EFW, Fabricated (Round, Square, Rectangular) | ||||||
| Outer Diameter | 6 mm – 610 mm | ||||||
| Wall Thickness | 0.5 mm – 50 mm | ||||||
| Length | Up to 12 meters (custom cut lengths available) | ||||||
| Density (g/cm³) | 8.0 | 8.0 | 8.0 | 8.0 | 7.8 | 7.8 | 8.9 |
| Melting Point (°C) | 1400–1450 | 1350–1450 | 1350–1450 | 1446 | |||
| Tensile Strength (MPa) | 515 | 485 | 515–750 | 515 | 620 min | 800 min | 380 min |
| Yield Strength (MPa) | 205 | 170 | 205 | 205–250 | 450 min | 550 min | 105 min |
| Elongation (%) | 40 | 25 | 25 | 30 | |||
| Hardness (HB) | 201 max | 290 max | 310 max | 110 max | |||
| Applications | Food processing, petrochemicals, welded structures | Oil & Gas, Pressure Vessels, Chemical Processing | Marine, Offshore, Desalination, Heat Exchangers | Chemical Plants, Electrical Components, Marine Industry | |||
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