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Home > Super Duplex Steel > Super Duplex Steel Seamless Tubing
Laila Pipes and Tubes, located in Muscat, Oman, stands out as a top manufacturer and supplier of high-quality Super Duplex Steel Seamless Tubing. Renowned for its precision engineering and commitment to international standards, the company provides tubing that boasts exceptional strength, corrosion resistance, and reliability. What sets Super Duplex Steel Seamless Tubing apart is its seamless design, which means no welded joints, ensuring a consistent structure and superior performance even under high pressure and extreme conditions. Laila Pipes and Tubes is dedicated to offering reliable tubing solutions for demanding industrial applications throughout Oman and the Gulf region.
Super duplex steel seamless tubing is usually produced from grades like UNS S32750 and S32760. These alloys exhibit a double-phase microstructure of austenite and ferrite, providing outstanding strength and corrosion resistance. The chemical structure consists of high concentrations of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), and nitrogen, which bring added resistance to pitting, crevice corrosion, and stress corrosion cracking. Mechanically, the tubing offers extremely high yield and tensile strength, high fatigue strength, and good toughness even under cryogenic conditions. The seamless design removes welds and maximizes the structural integrity and resistance to failure in demanding applications.
| Specifications | ASTM A 789 ASME SA 789 |
|---|---|
| Standard | AISI, DIN, EN, GB, JIS, ASTM, ASME Super Duplex 2507 Pipe |
| 2507 Seamless Pipe Outer Diameter | 6.00 mm OD up to 250 mm OD, Sizes up to 12” NB |
| Alloy 2507 Welded Pipe size | 5.0 mm – 1219.2 mm |
| 2507 EFW Pipe size | 5.0 mm – 1219.2 mm |
| Thickness | 0.3mm – 50 mm |
| SS 2507 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN |
| 2507 Welded Tube Size | 6.35 mm OD To 152 mm OD |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| DSS 2507 tubing wall thickness | 0.020″ –0.220″ (special wall thicknesses available) |
| 2507 Pipe Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Duplex 2507 Pipe & Tube Finish | Polished, AP (Annealed & Pickled), MF, NO.1, NO.4, BA (Bright & Annealed), 2B, BA, HL, 8K, Mirror finish,etc |
| 2507 Pipe & Tube Form | Round, Hollow, Square,Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc. |
| Super Duplex 2507 Pipe & Tube Length | Single Random, Double Random, Standard & Cut length |
| 2507 Pipe & Tube End | Beveled End,Plain End, Treaded. |
| 2507 Pipe & Tube Type | 2507 Seamless / ERW/ Welded / Fabricated / EFW / CDW / DOM / CEW Pipes |
| Marking | All 2507 Pipes are marked as follows: Grade, Standard, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| Super Duplex 2507 Tube Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialized in | Large Dia 2507 Pipe 2507 Capillary Tube & Other Odd Size 2507 Super Duplex Heat Exchanger & Condenser Tubes |
| Super Duplex | C | N | P | Si | Mn | Mo | Ni | Cr | S | Other |
| 0.030 | 0.24/0.32 | 0.035 | 0.80 | 1.20 | 3.0/5.0 | 6.00/8.00 | 24.0/26.0 | 0.020 | Cu:0.50 |
| Super Duplex | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Super Duplex Steel Seamless Tubing from Laila Pipes and Tubes ensures superior quality and durability, offering outstanding corrosion resistance and high strength. Our dedication to delivering exceptional service and reliable products guarantees customer satisfaction across a wide range of industrial applications. With our expertise in Super Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
This Super Duplex Steel Seamless Tubing is crafted from high-alloy duplex steel grades, featuring around 25% chromium, 6–7% nickel, 3–4% molybdenum, and nitrogen. This well-balanced austenitic-ferritic microstructure delivers impressive mechanical properties, such as high tensile and yield strength, excellent toughness, and remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. The seamless construction not only eliminates weld-related defects but also boosts durability and long-term performance.
You’ll find Super Duplex Steel Seamless Tubing widely utilized in industries that demand high strength, corrosion resistance, and reliability. Common applications include oil and gas installations, offshore platforms, chemical and petrochemical processing plants, heat exchangers, desalination systems, marine environments, and power generation facilities. Its ability to endure harsh conditions, high pressure, and corrosive media makes Super Duplex Steel Seamless Tubing the perfect choice for critical industrial and engineering needs.
Super duplex steel seamless tubing is utilized in such applications where extreme mechanical strength and better corrosion resistance are necessary. It finds extensive use in offshore and subsea oil and gas platforms for chemical injection systems, control lines, and hydraulic systems. In chemical and petrochemical processing units, it is utilized in heat exchangers, reactors, and piping systems for aggressive media exposure. Power generation plants and desalination plants utilize it for high-pressure fluid transportation and brine systems. Its leak-free design provides assurance of trouble-free operation in corrosive and hostile environments.
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