Latham Steel, a proud Hamilton-based manufacturer, is a key supplier of high-performance piping for New Zealand’s most demanding projects. We have built our reputation on producing robust and reliable pipeline solutions, with our API 5L Grade L450 pipes standing as a testament to this commitment. Engineered to meet the highest international standards, this grade is specifically designed to handle substantial pressures and challenging environments, ensuring the integrity and safety of critical infrastructure across the country and beyond.
Crafted for strength, the API 5L L450 pipe boasts a carefully controlled composition, typically including elements like carbon, manganese, and micro-alloys to achieve its high-performance characteristics. This results in exceptional mechanical properties, including a minimum yield strength of 450 MPa. This ensures the pipe can withstand immense internal pressures and external loads without deforming, making it a fundamentally strong and dependable choice for heavy-duty transmission systems where failure is not an option.
| Specification | API 5L / ISO 3183 Hot Rolled . |
| API 5L Grade L450 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 |
| 535 | – | 78 | – | ||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Latham Steel is a top manufacturer and supplier of high-quality API 5L Grade L450 Pipe products in Hamilton, New Zealand. 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.
The primary use for API 5L Grade L450 pipe is in the construction of high-pressure, long-distance pipelines that form the backbone of our energy infrastructure. You will find it transporting oil and natural gas from remote sources to processing facilities and ultimately to consumers. Its robustness also makes it suitable for demanding industrial applications, including high-pressure water supply for municipalities and industry, as well as slurry transport in the mining sector, where its durability is essential for maintaining continuous, reliable operations.
Latham 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 Hamilton, New Zealand.
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