Marzouk Steel, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality steel products designed for specialized industrial service conditions. Among its low-temperature service range is Carbon Steel A334 Gr 3 Tubing, developed to perform reliably in cold and sub-zero environments. Manufactured in accordance with ASTM A334 standards, this tubing offers dependable toughness, strength, and resistance to brittle fracture. Marzouk Steel applies strict quality control throughout production, ensuring A334 Gr 3 tubing meets international specifications and delivers consistent performance in demanding low-temperature industrial applications.
Carbon Steel A334 Gr 3 Tubing is produced from high-quality carbon steel with carefully controlled chemical composition, including carbon, manganese, phosphorus, and sulfur. This grade provides good tensile and yield strength along with reliable impact resistance at low temperatures. The tubing features uniform wall thickness, good weldability, and resistance to thermal stress. It maintains stable mechanical properties and structural integrity under cold-service and moderate-pressure operating conditions.
| 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.
Marzouk Steel is a trusted manufacturer and supplier of high-quality Carbon Steel A334 GR 3 Tubing in Tunis, Tunisia. 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 Gr 3 Tubing is widely used in low-temperature piping systems, refrigeration plants, gas processing units, and cold-climate industrial facilities. It is suitable for transporting liquids and gases such as water, hydrocarbons, and process fluids where low-temperature toughness is required. The tubing is also used in petrochemical plants, refineries, and industrial process lines operating in cold environments. Engineers and operators rely on A334 Gr 3 tubing for its durability, safety, and dependable long-term performance.
Marzouk 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 Tunis, Tunisia.
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