Marzouk Steel, based in Tunis, Tunisia, is a leading manufacturer and supplier of high-quality steel products, committed to serving local and international industries with reliability and precision. Among its premium offerings is the Alloy Steel AISI 4145 Bar, known for exceptional strength, toughness, and durability. Marzouk Steel combines advanced production technology with stringent quality control to ensure that every bar meets exacting standards. By focusing on performance and customer satisfaction, the company provides engineers and fabricators with materials they can trust for demanding applications, supporting projects that require both resilience and consistency.
Alloy Steel AISI 4145 is a chromium-molybdenum alloy with a higher carbon content that delivers superior strength and wear resistance. Its composition allows for excellent tensile strength, fatigue resistance, and toughness under dynamic and high-stress conditions. AISI 4145 bars respond exceptionally well to heat treatment, enabling precise control over hardness and mechanical properties. Despite its robust performance, it retains reasonable machinability and weldability, making it a versatile choice for engineers and manufacturers who need a balance between strength, reliability, and workability.
| Dimensions: | ASTM, ASME, DIN, BS, EN, IS, AMS, JIS, IBR & Other International Standards. |
|---|---|
| Standard: | ASTM A689, JIS G4801, DIN 17221, GB/T 18254, ASTM A295, JIS G4805, etc. |
| Alloy Steel AISI 4145 Round Bars Range: | Range – 3.17mm to 350mm dia |
| Alloy Steel AISI 4145 Round Bars Diameter: | 5mm-500mm (Customized size is acceptable) |
| Alloy Steel AISI 4145 Round Bars Length: | 1m-9m or according to the customer’s requirement |
| Type: | Round bar, rod, square bar, flat bar, hexagon bar, angle bar, channel bar, threaded bar |
| Alloy Steel AISI 4145 Round Bars Technique: | Forged/Hot Rolled/Cold Drawn/Peeled |
| Alloy Steel AISI 4145 Round Bars Surface: | bright round bar, pickled round bar, black round bar |
| Package Details: | Standard seaworthy package(wooden boxes package,pvc package, or other package) |
| Export Area: | USA, UAE, Europe, Asia, Middle East, Africa, South America |
| Grade | AISI 4145 | |
|---|---|---|
| Min. | Max | |
| C | 0.43 | 0.49 |
| Cr | 0.80 | 1.10 |
| Si | 0.15 | 0.35 |
| S | – | 0.040 |
| Mn | 0.85 | 1.10 |
| P | – | 0.035 |
| Mo | 0.15 | 0.25 |
| rade: | AISI 4145 |
|---|---|
| Tensile Strength (ksi) min : | 140 |
| Elongation (% in 50mm) min: | 14 |
| Yield Strength 0.2% Proof (ksi) min: | 120 |
| Hardness: | – |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Standard: | AISI 4145 |
|---|---|
| WERKSTOFF NR. | – |
| UNS | G41450 |
Alloy Steel AISI 4145 Bars are widely used in industries where performance and durability are critical. They are commonly applied in automotive components like shafts, gears, and crankshafts, as well as in heavy-duty machinery, construction equipment, and oil and gas industry parts. Its high fatigue resistance and strength make it ideal for components that endure repeated stress and heavy loads. Engineers value AISI 4145 for its reliability, ensuring machinery and structural elements perform consistently under demanding conditions. This alloy combines toughness, resilience, and versatility, making it a go-to material for both industrial and mechanical 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.
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