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Home > Super Duplex Steel > Super Duplex Steel Tubing
Laila Pipes and Tubes, located in Muscat, Oman, stands out as a top manufacturer and supplier of high-quality Super Duplex Steel Tubing. Known for its precision engineering and commitment to international standards, the company offers tubing that boasts remarkable strength, corrosion resistance, and durability. Super Duplex Steel Tubing is crafted to perform reliably in highly aggressive environments, making it perfect for critical industrial and offshore applications. Laila Pipes and Tubes provides trustworthy tubing solutions to various industries throughout Oman and the Gulf region, ensuring high performance and long-lasting reliability even in demanding conditions.
Super Duplex Steel Tubing features a well-balanced microstructure of austenite and ferrite, typically comprising chromium (24–26%), nickel (6–8%), molybdenum (3–4%), and nitrogen to boost performance. This unique composition offers remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich settings. On the mechanical side, Super Duplex Tubing boasts high tensile strength, excellent fatigue resistance, and outstanding impact toughness, even in low temperatures. Its distinct metallurgical balance makes it stronger than regular austenitic or ferritic steels, while still allowing for great weldability and formability across various industrial applications.
Standard ASTM A790 / ASME SA790, ASTM A789 / ASME SA A789
Dimensions ASTM, ASME and API
Seamless Pipes & Tubes Sizes 1 / 2″ NB – 8″ NB
Welded Pipes & Tubes Sizes : 6″ NB – 24″ NB
Outer Diameter 6.0-630mm
Schedule SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS
Thickness 0.3mm – 50 mm
Type Seamless / ERW / Welded/ Fabricated
Form Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
Length Single Random, Double Random & Cut Length
End Plain End, Beveled End, Treaded
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| S32760 | 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 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| S32750 / S32760 | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000, MPa – 800 | Psi – 80000, MPa – 550 | 15 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
This Super Duplex Steel Tubing is made from high-alloy duplex steel grades that contain around 25% chromium, 6–7% nickel, 3–4% molybdenum, and nitrogen. This unique blend creates a balanced austenitic-ferritic microstructure, delivering exceptional mechanical properties like high tensile and yield strength, excellent toughness, and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. The tubing maintains its structural integrity under high pressure and extreme temperatures, guaranteeing reliable performance in tough environments.
Laila Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Tubing in the Muscats, OMAN, offers a wide range of high-quality pipes and tubes designed for various industrial applications. Their extensive inventory and dedication to exceptional service make them a trusted choice for Super Duplex steel products in the region, delivering reliable solutions to meet diverse project requirements.
Super Duplex Steel Tubing finds its place in industries that demand both high strength and exceptional corrosion resistance. Common applications include oil and gas pipelines, offshore platforms, chemical and petrochemical plants, seawater desalination systems, marine structures, and power generation equipment. Its durability, resistance to harsh conditions, and ability to endure mechanical and chemical stresses make Super Duplex Steel Tubing the go-to choice for critical industrial and engineering projects.
Super Duplex Steel Tubing is extensively utilized in sectors that demand high strength and exceptional corrosion resistance. In the oil and gas industry, it’s used for offshore platforms, subsea pipelines, and heat exchangers that face harsh seawater conditions. The chemical and petrochemical sectors rely on it for processing equipment, pressure vessels, and reactors due to its ability to withstand aggressive chemicals. In desalination plants, it’s found in evaporators and brine heaters, while in power generation, it’s used in condensers and boilers. Its long service life, reliability, and strength make it an essential choice for these demanding applications.
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