- sales@mariapipes.com
- Kuala lumpur, Malaysia
Home > Super Duplex Steel > Super Duplex Steel Tubing
Maria Pipes and Tubes, based in Kuala Lumpur, Malaysia, stands out as a reliable manufacturer and supplier of **Super Duplex Steel Tubing**. They provide robust and high-performance tubing solutions tailored for critical industrial applications. With a strong commitment to quality, precision, and dependability, the company crafts tubing from top-notch Super Duplex stainless steel grades like UNS S32750 and S32760. These tubes are designed to excel in highly corrosive and high-pressure settings, making them perfect for industries such as oil & gas, petrochemicals, marine, desalination, and energy.
Super Duplex Steel Tubes are composed of approximately 25% chromium, 3-4% molybdenum, and 6-8% nickel, providing excellent corrosion resistance and mechanical strength. Mechanical properties include high tensile strength (~800 MPa), yield strength (~550 MPa), and good elongation (25%), making them suitable for high-stress environments. These tubes exhibit outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Advantages include lightweight design, enhanced durability, and reduced maintenance requirements, making them ideal for applications in oil and gas, chemical processing, and marine industries, where reliability and performance are critical.
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.
What sets **Super Duplex Steel Tubing** apart is its unique dual-phase microstructure, which blends ferritic and austenitic stainless steel phases in nearly equal amounts. This distinctive structure delivers remarkable strength—often double that of regular austenitic stainless steels—along with impressive resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. Additionally, Super Duplex tubing boasts good weldability, fatigue strength, and thermal conductivity, making it a great fit for extreme environments. It comes in both seamless and welded forms, available in a variety of sizes and wall thicknesses to cater to different application requirements.
Maria Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Tubing in the Kuala lumpurs, Malaysia, 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.
Yes, we provide custom sizes for Super Duplex Steel Tubes to meet your specific requirements. At Maria Pipes and Tubes, our team is dedicated to delivering tailored solutions for all your piping and tubing needs. For more information, please contact us at sales@mariapipes.com.
Super Duplex Steel Tubing finds its place in high-stress, high-corrosion applications across various industries. In offshore oil and gas platforms, it’s utilized in subsea control systems, flow lines, and risers thanks to its strength and seawater resistance. Chemical and petrochemical plants use it for heat exchangers, instrumentation, and process piping systems. The marine sector relies on it for ballast water systems and desalination equipment. Its outstanding mechanical and corrosion-resistant properties also make it a top choice for power plants, structural components, and high-pressure systems that demand a long service life with minimal upkeep.
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