Yousef Steel stands out as a top manufacturer and supplier of Carbon Steel ASTM A334 Grade 3 Tubing, proudly based in Riyadh, Saudi Arabia. Known for its commitment to quality, Yousef Steel specializes in A334 Gr 3 low-temperature seamless carbon steel tubes that are crafted for high-performance use in chilly environments. These tubes are made in accordance with strict ASTM standards, making them perfect for pressure piping systems that require exceptional toughness, strength, and reliability even in sub-zero conditions. With a client base that spans across Saudi Arabia and the wider Middle East, Yousef Steel guarantees consistent product quality, prompt delivery, and expert technical support for vital industrial, energy, and petrochemical infrastructure projects.
The Carbon Steel A334 Grade 3 Tubing features a maximum carbon content of 0.19%, along with 0.31–0.64% manganese, and minimal amounts of phosphorus and sulfur. It boasts a minimum tensile strength of 415 MPa and a yield strength of 240 MPa, along with impressive elongation and impact resistance. Specifically designed for low-temperature applications, this material is usually normalized or provided in a heat-treated state. Grade 3 tubing is known for its good weldability, ductility, and toughness, making it an excellent choice for environments that frequently experience cold temperatures and pressure cycling.
| Element | A/SA 334 Gr A3 |
| C | 0.30 max |
| Mn | 0.40-1.06 |
| P | 0.025 max |
| S | 0.025 max |
| Element | A/SA 334 |
| Tensile Strength, (MPa) | 380 min |
| Yield Strength, (MPa) | 205 min |
| Elongation min. % | 35 |
| Hardness, HB | 163 max |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Yousef Steel is a trusted manufacturer and supplier of high-quality Carbon Steel A334 GR 3 Tubing in Riyadh, Saudi Arabia. We offer premium steel materials and a comprehensive range of products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel. Our extensive inventory features Tubes, Pipes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Committed to fast delivery and exceptional customer service, we source top-grade raw materials to ensure superior strength and durability for demanding industrial applications. Contact us today for all your Carbon Steel A334 GR 3 Tubing needs!
| Outside | Nominal | Wall | Inside | Weight |
| Diameter | Pipe Diameter | Thickness | Diameter | Lbs |
| Inches | Inches | Inches | Inches | Per Foot |
| 1.660 | 1-1/4 | .140 | 1.380 | 2.273 |
| 1.315 | 1 | .133 | 1.049 | 1.679 |
| 1.900 | 1-1/2 | .145 | 1.610 | 2.718 |
| 2.875 | 2-1/2 | .203 | 2.469 | 5.793 |
| 2.375 | 2 | .154 | 2.067 | 3.653 |
| 6.625 | 6 | .28 | 6.056 | 18.97 |
| 3.50 | 3 | .216 | 3.068 | 7.576 |
| 4.50 | 4 | .237 | 4.026 | 10.79 |
| 4 | 3-1/2 | .226 | 3.548 | 9.109 |
| 5.563 | 5 | .258 | 5.047 | 14.62 |
| 8.625 | 8 | .322 | 7.981 | 28.55 |
Carbon Steel A334 Grade 3 Tubing is extensively utilized in industries that require outstanding low-temperature performance. Typical applications include cryogenic processing systems, gas transmission lines, LNG facilities, and refineries. These tubes are also found in heat exchangers, pressure vessels, boiler systems, and refrigeration equipment. With remarkable impact resistance and structural integrity at temperatures as low as -45°C, A334 Gr 3 tubing ensures safety and efficiency in cold-weather operations. Its weldability and formability make it a go-to option for the energy, petrochemical, and offshore sectors that need durable and reliable piping solutions.
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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