Latham Steel is a trusted manufacturer and supplier based in Hamilton, New Zealand, specializing in high-quality Low Temperature Carbon Steel A333 Grade 4 Pipes. These pipes are specifically designed to withstand the rigors of cold-service and cryogenic environments, ensuring they maintain excellent ductility, toughness, and pressure stability even in extreme low temperatures. Adhering strictly to ASTM A333 standards, Latham Steel guarantees precise dimensions, reliable weldability, and consistent mechanical performance. A333 Grade 4 pipes are essential in LNG infrastructure, refrigeration systems, petrochemical operations, and gas-processing plants, where durability, safety, and resistance to brittle fracture are crucial.
A333 Grade 4 Pipes are crafted from low-temperature carbon steel, featuring controlled amounts of carbon, manganese, silicon, and an increased nickel content for enhanced impact resistance. This unique composition allows the material to perform reliably at temperatures as low as −45°C. The grade boasts impressive yield and tensile strength, making it suitable for medium-to-high pressure systems while also ensuring excellent ductility and fracture resistance under thermal stress. Its fine-grained microstructure enhances weldability, dimensional accuracy, and long-term stability in cold-service environments. A333 Grade 4 is specifically engineered to prevent brittle failure, ensuring reliable performance in demanding cryogenic applications.
| Standard Specification | LTCS ASTM A333 Grade 4 |
| Codes and Standards | ANSI, ASME, ASTM, API, SAE, BS, AGA, AWWA, ISO, DIN |
| Dimensions | ASME/ ANSI B36.10 / 19 |
| Standard Size | 1/2” NB to 36” NB (LSAW, SSAW, HSAW) |
| Wall Thickness | 3-12mm |
| Pipes schedules | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Producing techniques | Seamless / ERW / Welded / Fabricated / CDW / EFW |
| Available Shapes | Round, Half Round, Square, Rectangular or Custom shape |
| Length | 3 to Max18 Meters or custom |
| Pipe End | Beveled End, Plain End, Treaded |
| Test Certificate | EN 10204 3.1 B |
| C | Mn | P | S | Si | Cr | Cu | Mo | Ni | Cb | V | |
| Grade 4 : | 0.30 | 0.40-1.06 | 0.025 | 0.025 | – | – | – | – | – | – | – |
| A333 Gr.4 Properties | Data |
| Yield strength (min), psi (MPa) | 30,000 (205 Mpa) |
| Tensile strength (min), psi (MPa) | 55,000 (380 Mpa) |
| Elongation(%) | 35 |
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 leading supplier of high-quality Low Temperature Carbon Steel A333 Gr 4 Pipe 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.
Low Temperature Carbon Steel A333 Grade 4 Pipes find extensive use in cold-service and cryogenic systems that demand exceptional toughness and stability. Common applications include LNG storage and transport pipelines, refrigeration plants, gas-processing units, petrochemical facilities, offshore platforms, and chilled fluid distribution networks. They are also utilized in low-temperature pressure vessels, heat exchangers, and equipment that handle cold hydrocarbons or liquefied gases.
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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