Marzouk Steel is a trusted manufacturer and supplier of high-quality steel products based in Tunis, Tunisia, proudly serving local and regional industries. With a strong commitment to precision, consistency, and customer satisfaction, Marzouk Steel delivers Alloy Steel AISI 4130 Bars that meet international standards. Backed by technical expertise and modern production capabilities, the company focuses on providing reliable materials that perform under demanding conditions. Whether for small-scale fabrication or large industrial projects, Marzouk Steel partners closely with clients to ensure timely supply, dependable quality, and solutions tailored to real-world engineering needs.
Alloy Steel AISI 4130 is a chromium-molybdenum steel known for its balanced composition and excellent mechanical performance. It typically contains carbon, chromium, and molybdenum, which together enhance strength, toughness, and wear resistance. The material offers good tensile strength, high fatigue resistance, and excellent hardenability. AISI 4130 bars respond well to heat treatment, allowing properties to be tailored for specific applications. Its reliable weldability and machinability make it a practical choice for engineers seeking strength without sacrificing workability.
Diameter : 8mm-3000mm
Length : 3,000-10,000mm
Finish : Bright, Polish & Black
Condition : Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
| Grade | C | Cr | Si | S | Mn | P | Mo | |
| AISI 4130 | min. | 0.28 | 0.8 | 0.15 | – | 0.4 | – | 0.15 |
| max. | 0.33 | 1.1 | 0.35 | 0.04 | 0.8 | 0.035 | 0.25 | |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| AISI 4130 | 930 | 12 | 735 | 229 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WERKSTOFF NR. |
| AISI 4130 | G41300 | 1.7218 |
Alloy Steel AISI 4130 Bars are widely used across industries where strength and durability truly matter. They are commonly found in aerospace components, automotive parts, oil and gas equipment, and structural applications. From gears, shafts, and fasteners to tubing and aircraft frames, AISI 4130 performs well under stress and varying temperatures. Its versatility also makes it suitable for construction machinery and heavy-duty fabrication. Engineers value this alloy not just for its performance, but for the confidence it brings—knowing the material will hold up in critical, real-life working 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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