Marzouk Steel, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality steel products for heat-transfer and industrial applications. One of its core offerings is Carbon Steel ASME SA 179 Tubing, a seamless low-carbon steel tube specifically designed for heat exchangers and condensers. Manufactured in accordance with ASME SA 179 standards, this tubing is known for its excellent thermal conductivity, smooth surface finish, and reliable mechanical performance. Marzouk Steel ensures strict quality control, delivering SA 179 tubing that meets international specifications and supports efficient, long-lasting heat-transfer operations.
Carbon Steel ASME SA 179 Tubing is produced from low-carbon steel with controlled levels of carbon, manganese, phosphorus, and sulfur. This composition provides good tensile strength, excellent ductility, and superior formability. The seamless construction ensures uniform wall thickness, reliable mechanical properties, and enhanced resistance to operational stress. SA 179 tubing offers good weldability and machinability, making it ideal for precision fabrication and consistent performance in heat-transfer applications.
| Product | ASTM A179 Seamless Steel Tubes |
| Specification | ASTM A179 / ASME SA179 |
| Standard | ASTM A179/A179M, ASME SA179/SA179M is the standard applicable to Seamless cold drawn low carbon steel heat exchanger and condenser tubes |
| Size OD (In mm) | 3/4” (19.05mm), 1” (25.4mm), 1¼” (31.75mm), 1½” (38.1mm), 2” (50.8mm), 2½” (63.5mm), 3” (76.2mm) |
| Wall Thickness (BWG, mm) | 16BWG (1.651mm), 14BWG(2.108mm), 12BWG(2.769mm), 10BWG(3.404mm), 8BWG(4.191mm) |
| Application | For high, middle, low pressure boiler and pressure purposes |
| Length | 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on. Max length: 27000mm, also U bending can be offered |
| Product Marking | ASTM A179 or ASME SA179, size, heat no., Lot No. and Manufacture name or logo. |
| Other Testing | Hydrostatic Test |
| Type | Seamless – Hot Rolled / Cold Drawn |
| Form | Round |
| International Standards | ASME, API, EN, DIN, ISO |
| End | Plain End, Beveled End, Coupling |
| Inspection | Third Party Inspection, Buyer Inspection |
| Packing | Weaving Bag, Seaworthy Bundles, Wooden Case if required |
| Specials | Sizes and Specification other than above can be manufactured on request |
| Certification | EN 10204 3.1 |
| Chemical Composition | ||||
| C | Mn | P≤ | S≤ | Si≤ |
| 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 | 0.25 |
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 ASME SA 179 Tubing in Tunis, Tunisia. Specializing in premium steel materials, we offer a diverse range of products, including Carbon Steel, Alloy Steel, Mild Steel, and Galvanized Steel. Our extensive inventory features Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. With a strong commitment to reliable delivery and exceptional customer service, Marzouk Steel provides top-grade materials that ensure superior performance in various industrial applications. Trust us for all your Carbon Steel ASME SA 179 Tubing needs.
| Tensile | Yield | Elongation | Hardness |
| Strength (Mpa) | Strength (Mpa) | (%) | (HRB) |
| ≥325 | ≥180 | ≥35 | ≤72 |
Carbon Steel ASME SA 179 Tubing is widely used in heat exchangers, surface condensers, and cooling systems across power plants, refineries, and chemical processing facilities. It is designed for efficient heat transfer in low to moderate temperature and pressure conditions. The tubing is also used in industrial boilers and cooling circuits where smooth internal surfaces and reliable performance are essential. Engineers and plant operators rely on SA 179 tubing for its thermal efficiency, durability, and long service life in critical heat-transfer systems.
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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