Marzouk Steel, based in Tunis, Tunisia, is a trusted manufacturer and supplier of quality steel products for specialized industrial requirements. One of its low-temperature service offerings is Carbon Steel A334 Gr 1 Tubing, designed to perform reliably in cold and sub-zero environments. Manufactured in accordance with ASTM A334 standards, this tubing provides dependable toughness, durability, and safety at low temperatures. Marzouk Steel follows strict quality control procedures to ensure that every A334 Gr 1 tube meets international specifications, supporting efficient and safe operation in critical industrial piping systems.
Carbon Steel A334 Gr 1 Tubing is produced from high-quality carbon steel with controlled chemical composition, including carbon, manganese, phosphorus, and sulfur. This grade offers good tensile and yield strength along with reliable ductility and impact resistance at low temperatures. The tubing features uniform wall thickness, good weldability, and resistance to brittle fracture, ensuring consistent mechanical performance under cold-service and moderate-pressure conditions.
| Element | A/SA 334 Gr A1 |
| 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 A423 GR 1 Tubing in Tunis, Tunisia. We provide premium steel materials and a comprehensive range of products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel. Our extensive inventory includes Tubes, Pipes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. With a commitment to fast delivery and exceptional customer service, we source top-grade raw materials to ensure outstanding strength and durability for demanding industrial applications. Contact us today for all your Carbon Steel A423 GR 1 Tubing requirements!
| 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 1 Tubing is widely used in low-temperature piping systems, refrigeration units, gas processing facilities, and cold-climate industrial plants. It is suitable for transporting fluids such as water, hydrocarbons, and process gases in environments where low-temperature toughness is required. The tubing is also commonly used in refineries, petrochemical plants, and industrial process lines. Engineers and operators rely on A334 Gr 1 tubing for its durability, safety, and long service life in low-temperature applications.
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.
Copyright 2025 Marzouk Steel. All rights reserved
