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Home > Super Duplex Steel > Super Duplex Steel Welded Pipes
Laila Pipes and Tubes, based in Muscat, Oman, stands out as a premier manufacturer and supplier of top-notch Super Duplex Steel Welded Pipes. Renowned for its precision engineering and rigorous quality control, the company produces pipes that boast remarkable strength, corrosion resistance, and durability. These Super Duplex Steel Welded Pipes are specifically designed to endure tough environments, ensuring reliable performance in industries that require resistance to chloride stress corrosion, pitting, and crevice corrosion. With tailored solutions and a commitment to international standards, Laila Pipes and Tubes has earned its reputation as a trusted partner for industrial, chemical, oil and gas, and marine applications throughout Oman and the Gulf region.
Super Duplex Steel Welded Pipes feature a well-balanced microstructure of austenite and ferrite, enriched with high levels of chromium (24–26%), nickel (6–8%), molybdenum (3–4%), and nitrogen. This unique composition provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides. On the mechanical side, they boast impressive tensile and yield strength, excellent fatigue resistance, and remarkable toughness, even in low temperatures. The welded design guarantees precise dimensions, robust weld integrity, and smooth finishes, making them perfect for critical applications that demand long-lasting reliability in harsh operating conditions.
Pipe Range : 1 / 2″ NB – 8″ NB
Outer Diameter : 6.00 mm OD up to 250 mm OD, Sizes up to 12” NB
Wall Thickness : 0.3mm – 50 mm
Schedules : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Required Length
Specifications : ASTM A789 / ASME SA789, ASTM A789 / ASME SA A789
Types : Welded / EFW / Fabricated
| Super Duplex | S32750 |
|---|---|
| Ni | 6.00 – 8.00 |
| Fe | 58.095 min |
| Cr | 24.00 – 26.00 |
| C | 0.030 max |
| Si | 0.80 max |
| Mn | 1.20 max |
| P | 0.035 max |
| S | 0.020 max |
| N | 0.24 – 0.32 |
| Grade | S32750 |
| Density (g/cm 3) | 7.8 |
| Density (lb/in 3) | 0.281 |
| Melting Point (°C) | 1350 |
| Melting Point (°F) | 2460 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The composition of Super Duplex Steel Welded Pipes includes around 22% chromium, 5–6% nickel, 3% molybdenum, along with trace elements like nitrogen. This distinctive blend creates a balanced microstructure of austenite and ferrite, endowing the pipes with outstanding mechanical properties and corrosion resistance. They demonstrate high tensile strength, excellent toughness, and remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion, even in harsh chloride-laden environments. These mechanical and chemical attributes make Super Duplex Steel Welded Pipes perfect for demanding applications in the chemical, petrochemical, and offshore sectors.
Laila Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Welded Pipes in Muscat, OMAN, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Super Duplex Steel Welded Pipes find extensive use in industries that require both strength and resilience against highly corrosive conditions. They are frequently utilized in oil and gas pipelines, chemical processing facilities, desalination plants, marine and offshore structures, and power generation plants. Their durability, impressive mechanical strength, and resistance to chloride-induced corrosion make them the go-to choice for transporting chemicals, seawater, and hydrocarbons. The combination of a long service life, reliability, and corrosion resistance truly sets these pipes apart in the industry.
These Super Duplex Steel Welded Pipes are extensively utilized in industries that require both exceptional corrosion resistance and high strength. In the oil and gas sector, they find applications in offshore platforms, subsea pipelines, and risers. The petrochemical and chemical industries rely on them for process piping, heat exchangers, and pressure vessels due to their ability to withstand aggressive chemicals. In marine and desalination plants, they are essential for seawater cooling systems and evaporators. Power generation facilities also depend on them for boilers and condensers. Their durability, extended service life, and outstanding performance make them the ideal choice for critical industrial applications.
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