Yousef Steel, located in Riyadh, Saudi Arabia, has built a solid reputation as a reliable supplier and manufacturer of specialized steel piping solutions tailored for demanding industrial needs. Among its standout products is the Low Temperature Carbon Steel A333 Grade 4 pipe, specifically engineered for low-temperature environments where both high strength and exceptional notch toughness are essential. Adhering to ASTM A333 specifications, these pipes meet stringent industry standards and find extensive use in sectors like oil and gas, petrochemicals, LNG, and power generation. Yousef Steel is committed to delivering consistent quality, prompt deliveries, and technical support to cater to the complexities of infrastructure and process systems.
The ASTM A333 Grade 4 pipe is crafted from a fine-grain carbon-molybdenum steel alloy, designed to perform in temperatures as low as -45°C (-50°F). Its chemical makeup includes a maximum carbon content of 0.12%, manganese ranging from 0.50% to 1.05%, and minimal phosphorus and sulfur at 0.025% each, along with a significant molybdenum content of 0.45% to 0.65%. This unique blend enhances the pipe’s strength, toughness, and resistance to low-temperature embrittlement. With a minimum yield strength of 275 MPa and a minimum tensile strength of 485 MPa, this grade boasts improved mechanical properties. Its fine grain structure and low carbon content also contribute to excellent weldability and impact resistance in cryogenic conditions.
| 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.
Low Temperature Carbon Steel A333 Gr 4 pipes are perfect for applications that demand outstanding toughness and reliability in sub-zero temperatures. They are widely utilized in systems that transport liquefied gases, chilled fluids, and hydrocarbons in cryogenic and arctic settings. Industries such as offshore drilling, LNG processing, and energy infrastructure in cold climates depend on A333 Gr 4 for its remarkable combination of strength and ductility. These pipes are also well-suited for pressure applications, ensuring safety and efficiency in challenging environments.
Low Temperature Carbon Steel A333 Gr 4 Pipe are primarily used in cryogenic and low-temperature conditions in which high toughness and durability are essential. Generally, it finds its application in oil, gas, petrochemical, and power plants, where transported liquefied gases, low-temperature fluids, and chemicals are present. These pipes are better pipe systems for cold climates, because of their excellent notch toughness and resistance to brittle fracture. They ensure safe and efficient performance in extremely low temperatures.
Yousef 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 Riyadh, Saudi Arabia.
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