Marzouk Steel, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality steel products designed for specialized industrial requirements. Among its low-temperature service offerings is Carbon Steel A334 Gr 11 Tubing, developed to perform reliably in sub-zero environments. Manufactured in accordance with ASTM A334 standards, this tubing provides excellent toughness, durability, and safety at low temperatures. Marzouk Steel follows strict quality control procedures to ensure that every A334 Gr 11 tube meets international specifications, making it a dependable choice for cryogenic and cold-service applications across energy and industrial sectors.
Carbon Steel A334 Gr 11 Tubing is produced from high-quality alloyed carbon steel with controlled chemical composition, including carbon, manganese, nickel, and other elements that enhance low-temperature performance. This grade offers good tensile and yield strength combined with excellent impact toughness at sub-zero temperatures. The tubing features uniform wall thickness, high structural integrity, and resistance to brittle fracture, ensuring consistent mechanical performance under low-temperature and pressure variations.
| Element | A/SA 334 Gr A11 |
| 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 leading manufacturer and supplier of Carbon Steel A334 GR 11 Tubing in Tunis, Tunisia. We offer premium-quality steel materials and an extensive range of products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel. Our vast inventory features Tubes, Pipes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Committed to fast delivery and exceptional customer service, we ensure that all our products are crafted from the highest-quality raw materials, delivering outstanding strength, durability, and performance for demanding industrial applications. Contact us today for your Carbon Steel A334 GR 11 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 11 Tubing is widely used in low-temperature and cryogenic applications such as LNG processing plants, gas transmission systems, refrigeration units, and cold-climate piping networks. It is suitable for transporting gases, liquids, and hydrocarbons in environments where low-temperature toughness is essential. The tubing is also used in petrochemical facilities, refineries, and industrial process systems. Engineers and plant operators rely on A334 Gr 11 tubing for its safety, durability, and long-term performance in demanding low-temperature service conditions.
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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