Liam Steel is a reputable manufacturer and supplier located in Manila, Philippines, with a focus on high-quality Alloy Steel WP91 Pipe Fittings. These fittings are celebrated for their exceptional strength, resistance to corrosion, and durability, making them perfect for high-pressure and high-temperature settings. Liam Steel prides itself on precision engineering, rigorous quality control, and compliance with international standards, ensuring that their products meet the demanding needs of various industrial applications. With a strong commitment to reliability and performance, Liam Steel offers customized WP91 fittings tailored to the unique requirements of the power generation, petrochemical, and oil and gas industries.
Alloy Steel WP91 Pipe Fittings are primarily made up of chromium (8–9.5%), molybdenum (0.85–1.05%), along with carbon, manganese, silicon, and trace elements that enhance their strength and oxidation resistance. These fittings boast impressive mechanical properties, including a high tensile strength of about 620 MPa, a yield strength of 415 MPa, and good elongation capacity. They also maintain remarkable creep and stress rupture strength, even at elevated temperatures, ensuring they perform exceptionally well in harsh operating conditions, such as those found in steam and boiler systems.
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.
Alloy Steel WP91 Pipe Fittings are commonly utilized in industries where high temperature and pressure are the norm. They play a crucial role in power plants, refineries, chemical processing facilities, and boiler manufacturing. Their outstanding heat resistance and toughness make them ideal for steam pipelines, superheaters, reheaters, and heat exchangers. In the oil and gas sector, these fittings provide leak-proof connections and durability in corrosive environments. Furthermore, WP91 fittings are favored in thermal and nuclear power generation systems due to their ability to endure extended service at high temperatures without warping or degrading.
Liam 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 Manila, Philippines.
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