Marzouk Steel, headquartered in Tunis, Tunisia, is a leading manufacturer and supplier of premium steel products, serving industries that demand strength, durability, and precision. Among its specialized offerings are Alloy Steel WP11 Pipe Fittings, designed for high-pressure, high-temperature, and critical piping systems. Manufactured using advanced forging and forming technology with stringent quality control, WP11 fittings provide exceptional tensile strength, toughness, and corrosion resistance. Marzouk Steel ensures that every WP11 fitting meets international standards, delivering reliable solutions for petrochemical plants, power generation systems, oil and gas pipelines, and industrial piping networks requiring secure, leak-proof, and long-lasting connections.
Alloy Steel WP11 Pipe Fittings are made from high-grade chromium-molybdenum (Cr-Mo) alloy steel, engineered for superior tensile strength, hardness, and thermal stability. Their chemical composition, including carbon, chromium, and molybdenum, enhances toughness, impact resistance, and fatigue strength. WP11 fittings are heat-treated to optimize yield strength, tensile strength, and toughness. Designed to maintain structural integrity under high-pressure and high-temperature conditions, these fittings are ideal for demanding industrial, petrochemical, and power generation applications where long-term reliability and performance are critical.
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 are widely used in industries requiring strong, durable, and high-performance piping connections. They are commonly applied in boilers, heat exchangers, turbines, petrochemical plants, oil and gas pipelines, and heavy industrial machinery. Engineered to withstand high pressures, elevated temperatures, and cyclic mechanical loads, WP11 fittings provide secure, leak-proof connections. Engineers and fabricators rely on these fittings for critical applications where safety, durability, and operational efficiency are essential. Their combination of mechanical strength, toughness, and corrosion resistance ensures dependable performance in demanding industrial and energy-related environments.
Marzouk 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 Tunis, Tunisia.
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