Mourad Metals is a trusted manufacturer and supplier of high-quality steel products based in Tunis, Tunisia, serving aerospace, automotive, oil and gas, and industrial sectors worldwide. The company supplies Alloy Steel AISI 4140 Bars and Rods manufactured with precision to ensure consistent chemical composition, accurate dimensions, and superior surface finish. With modern production facilities and strict quality control, Mourad Metals delivers steel products that meet international standards. Its technical expertise, customer-focused approach, and reliable logistics make it a preferred source for high-strength, durable, and versatile alloy steel components.
AISI 4140 Bars and Rods are chromium-molybdenum alloy steels containing approximately 0.38–0.43% carbon, 1% chromium, 0.2% molybdenum, and small amounts of manganese and silicon. This composition provides excellent tensile and yield strength, high hardness, and superior fatigue and wear resistance. Mechanically, 4140 steel offers good hardenability, toughness, and machinability, making it suitable for both as-rolled and heat-treated conditions in demanding engineering applications.
| Dimensions | : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Size | : | 5 mm To 500 mm |
| Diameter | : | 0.1 mm to 100 mm |
| Length | : | 100 mm To 3000 mm Long & Above |
| Finish | : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Tolerance | : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Form | : | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
| Grade | C | Mn | Si | P | S | Fe | Mo | Ni | Cr |
| AISI / SAE 4140 | 0.38-0.43 | 0.75-1.00 | 0.20-0.35 | 0.035 max | 0.035 MAX | – | – | 0.15-0,25 | 0.80-1.10 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.85 g/cm3 | 1432 ℃ | 560 | 460 | 21.50% |
Alloy Steel AISI 4140 Bars and Rods are known for their excellent strength, toughness, and wear resistance. With a chemical composition that includes chromium and molybdenum, they offer improved hardness, fatigue resistance, and good machinability, making them ideal for demanding applications.
AISI 4140 Bars and Rods are commonly used in automotive, aerospace, oil and gas, construction, and heavy machinery industries. They are ideal for manufacturing parts such as gears, shafts, crankshafts, and axles that require high strength and durability.
Yes, Alloy Steel AISI 4140 Bars and Rods can be heat treated to achieve desired mechanical properties. Heat treatment processes such as quenching and tempering can increase hardness, strength, and toughness, making the material suitable for high-stress applications.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | EN |
| AISI / SAE 4140 | 1.7225 | G41400 | SCM 440 | BS 708M40 | 1.7223 |
AISI 4140 Bars and Rods are widely used in aerospace, automotive, and industrial machinery applications. Typical uses include shafts, gears, crankshafts, axles, high-strength structural components, and fasteners. They are also employed in oil and gas equipment, heavy machinery, and tooling where durability, toughness, and resistance to wear and fatigue are critical. The alloy’s combination of mechanical performance and reliability makes it ideal for high-stress, high-performance applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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