Yousef Steel is a reliable API 5L Grade L320 pipe manufacturer and supplier in Riyadh, Saudi Arabia, offering high-strength carbon steel piping solutions for the oil, gas, water, and energy industries. Renowned for quality, accuracy, and compliance with international standards, Yousef Steel manufactures Grade L320 pipes for onshore and offshore pipeline systems. These pipes are designed to carry fluids under high pressure and find extensive use in critical applications where reliability, durability, and strength are the requirement. With sophisticated manufacturing plants and rigorous quality control, Yousef Steel guarantees consistent performance and customer satisfaction.
API 5L Grade L320 pipe, also known as X46, is a high-strength carbon steel pipe whose minimum yield strength is 320 MPa and minimum tensile strength is 435–760 MPa. Its chemical composition typically consists of carbon (max 0.28%), manganese (1.20–1.40%), phosphorus (max 0.030%), sulfur (max 0.030%), and trace elements of other elements depending on PSL1 or PSL2 specifications. These pipes come in seamless or welded varieties and have good weldability, toughness, and resistance to stress, making them suitable for middle- to high-pressure pipeline applications.
| 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 |
| 435 | – | 63 | – | ||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Yousef Steel is a top manufacturer and supplier of high-quality API 5L Grade L320 Pipe products in Riyadh, Saudi Arabia. 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 L320 pipes find wide application in high-pressure oil and gas transmission lines, petrochemical structures, and industrial pipe line systems. They are also applicable to offshore platforms, gas processing facilities, and structural structures where reliability and resistance to extreme environmental conditions are the key. L320 pipes accommodate long-distance transportation of fluid and can endure substantial mechanical stress, pressure fluctuations, and corrosive environments. Their excellent mechanical properties and weldability make them an indispensable option for contemporary pipeline building and upkeep in strategic energy and utility industries.
Yousef 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 Riyadh, Saudi Arabia.
Copyright 2025 Yousef Steel. All rights reserved
