Marzouk Steel, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality steel products, serving industries that demand strength, durability, and reliability. Among its specialized offerings is the API 5L Grade L390 Pipe, designed for oil, gas, and water transmission pipelines. Manufactured according to API 5L standards with advanced technology and strict quality control, L390 pipes provide excellent tensile strength, toughness, and corrosion resistance. Marzouk Steel ensures that every L390 pipe meets international specifications, offering engineers and fabricators a dependable solution for energy transportation, industrial piping systems, and infrastructure projects.
API 5L Grade L390 Pipes are made from carbon steel with carefully controlled alloying elements, ensuring a balance of strength, ductility, and toughness. They typically contain carbon, manganese, phosphorus, and sulfur within strict limits, delivering high tensile strength and yield strength. The L390 designation ensures a minimum yield strength of 390 MPa while maintaining excellent impact resistance and weldability. These pipes can withstand internal pressures, mechanical stresses, and environmental factors, making them ideal for pipeline applications in oil, gas, and water transportation.
| Specification | API 5L / ISO 3183 Hot Rolled . |
| API 5L Grade L390 Pipe Type | Seamless |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Outer Diameter Size | 3/8″ NB To 30″ NB (Nominal Bore Size) |
| Wall Thickness | Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness |
| Length | 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size. |
| Pipe Ends | Plain Ends / Beveled Ends / Coupling |
| Surface Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| max 0.28 | – | max 1.40 | 0.03 | 0.03 | – | – | – | – | Nb+Ti+V max 0.15 |
| Yield Strength | Tensile Strength | Elongation A5 min | |||
|---|---|---|---|---|---|
| MPa min | ksi min | MPa min | MPa min | ksi min | Percentage |
| 490 | – | 71 | – | ||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Marzouk Steel is a top manufacturer and supplier of high-quality API 5L Grade L390 Pipe products in Tunis, Tunisia. Specializing in steel solutions, we provide a wide range of products, including Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel. Our offerings include Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates. Known for our reliable delivery and superior customer service, we are committed to offering top-tier steel materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your steel needs.
API 5L Grade L390 Pipes are widely used in the oil and gas industry for the transportation of crude oil, natural gas, and refined petroleum products. They are also suitable for water and slurry pipelines, as well as industrial piping systems that require high strength and toughness. Engineered to withstand high internal pressures, mechanical stresses, and corrosive environments, L390 pipes provide reliable, leak-proof solutions. Engineers and fabricators rely on these pipes for pipeline infrastructure projects, energy transportation networks, and industrial fluid systems where safety, durability, and operational efficiency are critical.
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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