From Hamilton, New Zealand, Latham Steel has built a strong reputation as a trusted partner in the industrial supply chain, supplying robust materials for demanding projects. Our Carbon Steel API X46 5L PSL 1 Pipes embody this commitment to quality and reliability. Manufactured to exacting international standards, these pipes are designed for strength and durability, providing a dependable solution for the critical task of transporting oil and gas. We ensure our clients receive pipes that not only meet specifications but also support the integrity and longevity of their infrastructure, right from the heart of the Waikato.
The composition of these pipes is a careful balance of carbon and manganese, creating a material known for its excellent weldability and reliable performance. This specific grade is defined by its mechanical properties, including a minimum yield strength of 46,000 psi, which provides the structural integrity needed to handle substantial internal pressures. This combination of a straightforward, effective chemical makeup and proven mechanical strength makes the API X46 grade a practical and widely used choice for pipeline systems where consistent, long-term performance is the primary goal.
| Grade of material | X46 / L320 (N, M, Q, R) |
| API 5L Gr X46 ERW and HFW | 1/2” NB – 24” NB |
| X46 LSAW / DSAW | 16’OD TO 54″ OD (8 MM TO 50 MM THK) |
| Standard | ISO 3183 L320/ API 5L X46 |
| API 5L X46 Seamless Pipe (OD) | 21.3 – 660mm ( Inch 1/2” – 26”) |
| PSL Level | |
| X46 Steel SAW | 16″ – 100″ NB |
| Surface Treatment | Pickling Galvanising Forging Capping Pre turning Powder Coating Degreasing Washing Copper Plating Cementing Chromium – Plating Brushing Nickle – Plating Roller Polishing Grinding Honing Shot Blasting Skiving PE Covering Roller Burnishing |
| Manufacturing process | Welded, Extrusion, Submerged Arc Welded (SAW), Seamless, Electro Fusion Seam Welded (EFSW), Longitudinally Submerged Arc Welded (LSAW), Cold Drawn Seamless (CDS), Hot Finish Seamless (HFS), Horizontal Submerged Arc Welded (HSAW), Electric Resistance Welded (ERW) |
| API 5L X46 PSL1 Pipe end | Squared Ends, Thread Cutting, Socket, Flanged Ends, Beveled End (BE), Cut Grooves, Square Cut, Grooved, Screwed, Vibrator Grinding, Coupling, Plain end (PE), Threaded Ends (Male & Female), Deburring, Chamfering, Buttweld, Pub Joints |
| Certificate | IBR, NACE, EN-10204:3.1, EN-10204:3.2, SSC, Sour-Service, HIC, |
| X46 Carbon Steel Pipe Length | DRL, SRL, 20FT, 40FT, Single Random Length (SRL), Double Random Length (DRL), and Fixed Length 5.8 Meter, 12.0 Meters (40FT), 6.0 Meters (20FT), 11.8 Meters, |
| C | Mn | P | V | Nb | Ti | |
| maxb | maxb | max. | max. | max. | max. | max. |
| 0.28 | 1.20 | 0.030 | 0.030 | c,d | c,d | d |
| Y.S | T.S | ELONGATION |
| Mpa(psi) | Mpa(psi) | |
| min | min | min |
| 245(35 500) | 415(60 200) | 28% |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| NB | DN | OD (inches) | API 5L X46 Pipe Schedule | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCH 5 | SCH 10 | SCH 20 | SCH 30 | SCH 40 | SCH 60 | SCH 80 | SCH 100 | SCH 120 | SCH 160 | ||||
| 3/4″ | 20 | 1.05 | 0.065 | 0.11 | x | 0.095 | 0.113 | x | x | 0.17 | x | 0.219 | |
| 1″ | 25 | 1.315 | 0.065 | 0.11 | x | 0.114 | 0.133 | x | x | 0.2 | x | 0.25 | |
| 1.1/2″ | 40 | 1.9 | 0.065 | 0.11 | x | 0.125 | 0.145 | x | x | 0.225 | x | 0.281 | |
| 2″ | 50 | 2.375 | 0.065 | 0.12 | x | x | 0.154 | x | x | 0.25 | x | 0.344 | |
| 2.1/2″ | 65 | 2.875 | 0.083 | 0.12 | x | x | 0.203 | x | x | 0.3 | x | 0.375 | |
| 3″ | 80 | 3.5 | 0.083 | 0.12 | x | x | 0.216 | x | x | 0.35 | x | 0.438 | |
| 4″ | 100 | 4.5 | 0.083 | 0.12 | x | x | 0.237 | x | x | 0.437 | x | 0.531 | |
| 5″ | 125 | 5.563 | 0.109 | 0.12 | x | x | 0.258 | x | x | 0.5 | x | 0.625 | |
| 6″ | 150 | 6.625 | 0.109 | 0.13 | x | x | 0.28 | x | x | 0.562 | x | 0.719 | |
| 8″ | 200 | 8.625 | 0.109 | 0.15 | 0.25 | 0.277 | 0.322 | 0.406 | 0.593 | 0.718 | 0.812 | 0.906 | |
| 10″ | 250 | 10.75 | 0.134 | 0.17 | 0.25 | 0.307 | 0.365 | 0.5 | 0.718 | 0.843 | 1.0 | 1.125 | |
| 12″ | 300 | 12.75 | 0.165 | 0.18 | 0.25 | 0.33 | 0.406 | 0.5 | 0.843 | 1.0 | 1.125 | 1.312 | |
Latham Steel is a leading supplier of high-quality Carbon Steel API X46 5L PSL 1 Pipes products in Hamilton, New Zealand. We focus on steel solutions and offer a variety of products. This includes Carbon Steel, Alloy Steel, Mild Steel, and Galvanized Steel. Our products are Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. We are known for our good delivery and excellent customer care. We aim to provide strong and durable steel materials for many industrial uses. We work hard to meet high standards, making us a trusted partner for your steel needs.
These API X46 pipes are fundamental to the energy sector, primarily used for gathering and transmission lines in both onshore and near-shore oil and natural gas applications. Their robust construction makes them suitable for moving hydrocarbons over long distances, forming the vital arteries of the energy infrastructure. Beyond oil and gas, their dependable pressure-handling capability also lends them to uses in other industrial settings, such as water pipelines and structural piling, where a tough, cost-effective steel pipe is required for challenging environments.
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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