Phanuphong Steel and Plates stands out as a top manufacturer and supplier based in Bangkok, Thailand, specializing in high-quality steel products and fittings tailored for critical industrial applications. Among their impressive offerings, the Alloy Steel WP12 Pipe Fittings are particularly noted for their remarkable strength, durability, and adherence to international quality standards. These fittings are designed to perform reliably even in high-pressure and high-temperature environments, making them essential for sectors like oil, gas, petrochemicals, and power generation. Phanuphong Steel is committed to delivering superior material quality, ensuring timely deliveries, and providing cost-effective solutions, which has solidified its reputation as a trusted partner for industrial and infrastructure projects both in Thailand and around the globe.
The Alloy Steel WP12 Pipe Fittings are primarily made up of chromium and molybdenum, with precisely controlled levels of carbon, manganese, phosphorus, sulfur, and silicon. This specific composition grants them excellent high-temperature strength, corrosion resistance, and mechanical durability. In terms of mechanics, these fittings showcase high tensile and yield strength, outstanding hardness, toughness, and resistance to creep and oxidation, making them perfect for challenging environments. Their excellent weldability and long-lasting performance guarantee reliability in critical piping systems. Alloy Steel WP12 Pipe Fittings are designed to uphold structural integrity and operational efficiency, even under high-pressure and thermal stress conditions.
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 WP12 | 0.05-0.2 | 0.3-0.8 | 0.5-1 | ≤0.030 | ≤0.030 | 1-1.5 | 0.44-0.65 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A234 WP12 | 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 find extensive use in power plants, refineries, petrochemical industries, and chemical processing units where high-pressure and high-temperature performance is crucial. They are commonly utilized in boilers, superheaters, heat exchangers, steam pipelines, and turbine systems, ensuring reliable connections in vital piping networks. With their exceptional mechanical strength, corrosion resistance, and durability, they are ideal for fabrication, structural, and industrial piping applications. Their long service life and dependable performance make them a go-to choice for many industries.
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
