Shalan Steel stands out as a reliable manufacturer and supplier of alloy steel WP91 pipe fittings right in the heart of Kuala Lumpur, Malaysia. They specialize in delivering top-notch fittings designed for high-temperature and high-pressure applications. Crafted to meet ASTM A234 WP91 specifications, these fittings are celebrated for their remarkable strength, resistance to creep, and ability to fend off corrosion, even in tough environments. Shalan Steel takes pride in their precision manufacturing, ensuring that every fitting boasts accurate dimensions, smooth finishes, and dependable weldability, all while adhering to the rigorous standards of the power generation, petrochemical, and refinery sectors. With a diverse selection of WP91 fittings, they guarantee reliable performance and a long lifespan in critical piping systems.
These alloy steel WP91 pipe fittings are made from a ferritic alloy steel blend that includes chromium, molybdenum, and vanadium, along with carefully controlled levels of carbon, manganese, phosphorus, sulfur, and silicon. This specific chemical makeup gives the fittings outstanding high-temperature strength, oxidation resistance, and structural stability, even when exposed to prolonged heat.
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.
You’ll find these fittings commonly used in boiler systems, superheaters, heat exchangers, and piping for power plants. Their ability to endure extreme temperatures, high pressures, and corrosive environments makes WP91 fittings the go-to choice for essential applications in energy production, chemical processing, and other demanding industrial fields.
Shalan 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 Kuala lumpur, Malaysia.
Copyright 2025 Shalan Steel. All rights reserved
