Luke Steel proudly produces and delivers API 5L Grade L320 Pipes from its Houston base, catering to the increasing demand for strength–oriented line pipe solutions in the energy industry. The pipes are designed for challenging transmission applications and provide enhanced yield strength and reliability. Our L320 pipes are API 5L standards compliant and are used in sour and non-sour service environments. With a focus on product traceability, quality assurance, and timely delivery, Luke Steel is the go-to choice for high-pressure fluid transport systems and critical oil & gas infrastructure.
API 5L Grade L320 Pipe has low to medium carbon, manganese, and micro-alloying elements such as niobium and vanadium for increased strength and toughness. It has a minimum yield strength of 320 MPa and tensile strength of 435–600 MPa. The material has superior fracture toughness and weldability even at high-stress and low-temperature conditions. It comes in seamless or welded pipe form and goes through stringent testing, such as Charpy impact and hydrostatic testing, to meet industry standards
| 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.
Luke Steel is a top manufacturer and supplier of high-quality API 5L Grade L320 Pipe products in Houstan, USA. 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.
L320 pipes are deployed in crude oil, natural gas, and petroleum product high-pressure transmission pipelines. Their high mechanical properties render them suitable for subsea pipelines, offshore drilling, and cross-country transmission pipelines. L320 pipes also exist in large-scale construction and hydraulic systems with high requirements for strength-to-weight ratios. The L320 grade is typically selected based on its capability to operate in sour service environments and in harsh weather conditions, promising long-term viability and cost-effectiveness to critical infrastructure.
Luke 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 Houstan, USA.
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