Faisal Steel stands as a trusted name in Muscat’s industrial landscape, renowned for its reliable supply of specialized components for demanding sectors. We take pride in manufacturing and supplying high-performance Alloy Steel WP91 Pipe Fittings, engineered to meet the rigorous challenges of modern high-temperature and high-pressure systems. Our commitment lies in providing robust solutions that ensure longevity and safety, making us a preferred partner for critical projects across Oman and beyond, where quality and durability are non-negotiable.
The strength of WP91 fittings lies in their sophisticated composition, which includes chromium, molybdenum, and vanadium, with a key addition of niobium. This specific alloy recipe grants them exceptional mechanical properties, including remarkable creep strength and the ability to retain toughness even under sustained exposure to extreme heat. This means they resist deformation and failure over time, offering a reliable performance that is essential for the safety and efficiency of the systems they are integrated into.
Specifications : ASTM A234 / ASME SA234
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A234 WP91 | 0.08-0.12 | 0.3-0.6 | 0.2-0.5 | ≤0.02 | ≤0.015 | 8-9.5 | 0.85-1 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP91 | ≥590 | ≥415 | ≥20 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These exceptional properties make Alloy Steel WP91 Pipe fittings indispensable in environments where ordinary materials would quickly falter. They are primarily used in the construction of power generation plants, particularly in supercritical and ultra-supercritical boiler systems, and for critical piping in petrochemical refineries. Their high-temperature endurance also makes them ideal for various high-pressure applications across the oil and gas sector, ensuring the safe and continuous operation of some of the industry’s most challenging processes.
FAISAL Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Muscat, OMAN.
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