API 5L Grade L390 Pipe
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Thabiso Steel, a reputable manufacturer and supplier located in Cape Town, South Africa, specializes in high-quality **API 5L Grade L390 Pipes** designed for high-pressure and critical pipeline applications. These pipes are crafted with precision to deliver outstanding strength, durability, and resistance to corrosion, ensuring they perform reliably in tough industrial settings. Adhering to API standards, Thabiso Steel promises products that meet rigorous quality and safety benchmarks. The company serves various sectors, including oil and gas, petrochemical, and water transportation, providing piping solutions that blend longevity, operational efficiency, and structural integrity, making them a top choice throughout South Africa.
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Table of Contents
What is API 5L Grade L390 Pipe?
**API 5L Grade L390 Pipe** is mainly made up of carbon, manganese, phosphorus, sulfur, and a few trace alloying elements to enhance strength, toughness, and weldability. These pipes showcase impressive tensile and yield strength, high impact resistance, and good ductility. Their consistent microstructure helps them resist fatigue, corrosion, and environmental stresses, making them perfect for high-pressure service conditions. These mechanical attributes guarantee reliable performance and long-lasting dependability in pipelines used for transporting oil, gas, and water in both industrial and utility applications.
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API 5L Grade L390 Pipe Specification
| 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. |
API 5L Grade L390 Pipe Chemical Properties
| 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 |
API 5L Grade L390 Pipe Mechanical Properties
| Yield Strength | Tensile Strength | Elongation A5 min | |||
|---|---|---|---|---|---|
| MPa min | ksi min | MPa min | MPa min | ksi min | Percentage |
| 490 | – | 71 | – | ||
If You Are Looking To Buy High Quality
Pipes, Sheet, Fittings and Flanges
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Top Manufacturer and Supplier of API 5L Grade L390 Pipe in Cape Town, South Africa
ThabisoSteel is a top manufacturer and supplier of high-quality API 5L Grade L390 Pipe products in Cape Town, South Africa. 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.
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Types of API 5L Grade L390 Pipe






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Uses of API 5L Grade L390 Pipe
**API 5L Grade L390 Pipe** is extensively utilized in industries that demand robust and high-performance piping solutions. It’s commonly found in oil and gas pipelines, water and gas transmission systems, and industrial process lines. Moreover, it’s used in refineries, petrochemical facilities, and infrastructure projects where strength, toughness, and corrosion resistance are crucial. The combination of mechanical stability, precise dimensions, and resilience to harsh environmental conditions ensures safe and efficient transport of fluids and gases, making L390 pipes an excellent choice for challenging industrial and utility applications.
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- Oil and Gas Industry
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