Thabiso Steel is a reputable manufacturer and supplier located in Cape Town, South Africa, with a focus on high-quality Alloy Steel WP11 Pipe Fittings. They pride themselves on their dedication to excellence and customer satisfaction, which has helped them earn a solid reputation for providing durable, high-performance piping solutions tailored for demanding industrial applications. Their Alloy Steel WP11 Pipe Fittings are designed to meet international standards, boasting impressive strength, corrosion resistance, and thermal stability. Catering to a wide array of industries, Thabiso Steel guarantees timely deliveries, competitive pricing, and dependable support, making them a go-to partner for clients throughout South Africa and beyond.
Alloy Steel WP11 Pipe Fittings are primarily made up of chromium (1.00–1.50%) and molybdenum (0.44–0.65%), along with smaller quantities of carbon, manganese, phosphorus, sulfur, and silicon. This carefully crafted composition boosts their heat and corrosion resistance. On the mechanical side, they provide a minimum tensile strength of 415 MPa and a minimum yield strength of 205 MPa. These fittings are known for their excellent toughness, hardness, and structural stability, even under pressure and thermal stress. This combination of features ensures reliable performance in high-temperature and high-pressure settings, making them a trusted choice for critical piping 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 WP11 | 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 WP11 | 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.
Alloy Steel WP11 Pipe Fittings find extensive use in industries that require durability in extreme conditions. You’ll often see them in power generation plants, petrochemical complexes, oil and gas refineries, and chemical processing facilities. These fittings play a crucial role in piping networks that handle steam, hot gases, and aggressive fluids, especially in boiler systems, heat exchangers, and pressure vessels. Their thermal stability and resistance to oxidation also make them ideal for applications in marine, aerospace, and industrial equipment sectors. Built to withstand high stress and temperatures, WP11 fittings ensure consistent and long-lasting performance.
ThabisoSteel 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 Cape Town, South Africa.
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