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Home > Super Duplex Steel > Super Duplex Steel Welded Tubing
Laila Pipes and Tubes, located in Muscat, Oman, stands out as a top manufacturer and supplier of high-quality Super Duplex Steel Welded Tubing. With a reputation for precision engineering and a commitment to international standards, the company provides tubing that boasts exceptional strength, corrosion resistance, and long-lasting reliability. Their Super Duplex Steel Welded Tubing is crafted using advanced welding techniques, ensuring a uniform structure, robust weld integrity, and consistent performance. Laila Pipes and Tubes is dedicated to delivering reliable tubing solutions for demanding industrial applications throughout Oman and the Gulf region.
Super Duplex Steel Welded Tubing features a carefully balanced blend of austenite and ferrite phases, enriched with high levels of chromium (24–26%), nickel (6–8%), molybdenum (3–4%), and nitrogen. This distinctive composition offers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich environments. On the mechanical side, it provides impressive tensile and yield strength, excellent fatigue resistance, and good toughness, even in low temperatures. The welded form ensures precise dimensions, smooth finishes, and robust weld integrity, making it reliable for demanding industrial applications.
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
| Super Duplex | Welded |
|---|---|
| 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 |
| Material | Super Duplex Steel |
| 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 Super Duplex Steel Welded Tubing is made from high-alloy duplex steel grades, which typically contain around 25% chromium, 6–7% nickel, 3–4% molybdenum, and nitrogen. This well-balanced microstructure of austenite and ferrite results in superior mechanical properties, including high tensile and yield strength, excellent toughness, and remarkable resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking. The welded construction guarantees dimensional accuracy while preserving outstanding corrosion resistance and structural integrity.
Laila Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Welded 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.
This type of tubing is widely utilized in industries that demand high strength and corrosion resistance in challenging environments. Common applications include oil and gas facilities, chemical and petrochemical processing plants, offshore platforms, desalination systems, marine installations, heat exchangers, and power generation equipment. Its durability, ability to withstand harsh conditions, and cost-effective welded design make Super Duplex Steel Welded Tubing a go-to choice for critical industrial and engineering needs.
Super Duplex Steel Welded Tubing finds extensive use in industries that demand superior corrosion resistance and strength in harsh conditions. In the oil and gas sector, it’s commonly used for offshore pipelines, risers, and subsea equipment. The marine industry incorporates it into shipbuilding, seawater cooling systems, and desalination plants, thanks to its exceptional resistance to seawater. Chemical and petrochemical facilities utilize it in heat exchangers, pressure vessels, and process piping, while the power generation industry counts on it for boilers and condensers. Its durability and long service life make it a highly sought-after option for critical applications.
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