Marzouk Steel is a well-respected manufacturer and supplier of top-notch alloy steel products, proudly based in Tunis, Tunisia. They cater to a diverse array of industrial sectors. The company focuses on producing and supplying AISI 4140 Tubing, which is crafted to meet international standards and the rigorous demands of various operations. Thanks to their advanced manufacturing techniques, stringent quality control, and deep technical know-how, Marzouk Steel guarantees tubing that boasts exceptional strength, durability, and performance. Their commitment to customer satisfaction and dependable supply capabilities has made them a go-to choice for industries like oil and gas, construction, mechanical engineering, and power generation.
AISI 4140 Tubing is made from a chromium-molybdenum alloy steel, celebrated for its well-balanced chemical makeup and outstanding mechanical properties. This alloy includes carbon, chromium, and molybdenum, along with manganese and silicon, all of which work together to improve hardenability, strength, and wear resistance. On the mechanical side, AISI 4140 Tubing delivers high tensile and yield strength, impressive fatigue resistance, and remarkable toughness. It performs admirably under high stress and elevated temperatures, responds well to heat treatment, and maintains excellent machinability for precision tasks.
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN | JIS | BS | GOST |
| AISI 4140 | 1.7218 | G41300 | – | 25CrMo4 | JIS G4105 | BS 970 | – |
| AISI 4140 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 0.50 max | 0.28-0.33 | 0.15-0.25 | 0.40-0.60 | 0.15-0.35 | 97.3-98.22 | – | 0.025 MAX | 0.035 MAX | 0.80-1.10 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 0.28 | 2580 | 460 MPa | 560 MPa | 20 % |
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 distributor of high-quality AISI 4140 Tubing in Tunis, Tunisia. We offer premium steel materials and a diverse 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. Committed to prompt delivery and exceptional customer service, we source the finest raw materials to ensure superior strength and performance in demanding industrial applications. Contact us today for all your AISI 4140 Tubing needs!
AISI 4140 Tubing finds its place in various applications that require high strength and reliability, especially in tough working conditions. It’s commonly used in oil and gas operations for drilling components, pressure systems, and structural supports. In the mechanical and automotive sectors, this tubing is essential for shafts, cylinders, and high-load machine parts. Additionally, industries like construction, mining, and power generation depend on AISI 4140 Tubing for load-bearing structures and equipment that face continuous stress, vibration, and high temperatures.
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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