Phanuphong Steel and Plates stands out as a top manufacturer and supplier based in Bangkok, Thailand, known for delivering high-quality steel products and fittings that adhere to international standards. Among their impressive offerings, the Alloy Steel WP5 Pipe Fittings are particularly esteemed for their durability, strength, and performance in extreme conditions. These fittings are crafted to ensure reliable operation in high-pressure and high-temperature settings, making them perfect for critical sectors like oil, gas, power generation, and petrochemicals. With competitive pricing, prompt delivery, and unwavering quality, Phanuphong Steel has earned a reputation as a trusted partner for industrial and infrastructure projects around the globe.
The Alloy Steel WP5 Pipe Fittings are primarily made up of chromium and molybdenum as essential alloying elements, along with carefully controlled amounts of carbon, manganese, phosphorus, sulfur, and silicon. This specific composition grants them remarkable resistance to heat, oxidation, and corrosion, while also boosting their strength at high temperatures. On the mechanical side, these fittings showcase a yield strength of about 205 MPa and a tensile strength ranging from 415 to 585 MPa. They also possess good hardness, toughness, and durability, ensuring safe and efficient operation. Alloy Steel WP5 Pipe Fittings are perfectly suited for challenging environments that demand a long service life and reliability under thermal and mechanical stress.
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 WP5 | ≤0.15 | ≤0.6 | ≤0.5 | ≤0.04 | ≤0.03 | 4-6 | 0.44-0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP5 | 415 – 585 | ≥205 | ≥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 fittings are widely utilized in industries where high-temperature and high-pressure performance is essential. You’ll often find them in boilers, superheaters, heat exchangers, and steam pipelines. Power plants, refineries, and petrochemical facilities depend on them for their durability and reliability in critical piping systems. They’re also used in turbine systems, chemical processing units, and industrial machinery that require exceptional resistance to creep and oxidation. Thanks to their excellent weldability and mechanical strength, Alloy Steel WP5 Pipe Fittings are the go-to choice for complex fabrication and structural applications in demanding environments.
Phanuphong 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 Bangkok, Thailand.
Copyright 2025 Phanuphong Steel. All rights reserved
