Filiz Steel, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-quality Alloy Steel WP11 Pipe Fittings. With years of experience under their belt, Filiz Steel has earned a reputation for precision engineering, durability, and adherence to international quality standards. Their WP11 fittings are expertly designed for critical applications in power plants, refineries, and industrial piping systems. Supported by a talented workforce and cutting-edge manufacturing technology, Filiz Steel ensures that their products meet ASTM and ASME specifications. The company prides itself on timely delivery, competitive pricing, and a customer-focused approach, making it a reliable partner in global piping solutions.
Alloy Steel WP11 Pipe Fittings are primarily made up of chromium (1.0–1.5%) and molybdenum (0.45–0.65%), with iron making up the rest, which boosts their high-temperature strength and corrosion resistance. These fittings boast impressive mechanical properties, including a tensile strength ranging from 415 to 585 MPa, a minimum yield strength of 205 MPa, and at least 20% elongation. Built to withstand high-pressure and high-temperature conditions, WP11 fittings offer remarkable creep resistance and structural integrity. Their metallurgical stability and weldability make them perfect for severe service conditions, where reliability and performance are crucial.
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 demand high-temperature and high-pressure resistance. They are commonly used in thermal power plants, oil and gas refineries, petrochemical industries, and chemical processing units. These fittings are perfect for connecting pipes in steam pipelines, heat exchangers, boilers, and pressure vessels. Their outstanding resistance to oxidation and thermal fatigue ensures long-term performance in challenging environments. WP11 pipe fittings are also employed in offshore drilling operations and aerospace systems, where performance and durability are essential. Their compatibility with various welding techniques further adds to their versatility.
Filiz 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 Istanbul, Turkey.
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