Welcome to Desta Steel, your trusted partner for premium materials right here in the heart of Addis Ababa. As a leading manufacturer and supplier, we take pride in delivering excellence, particularly with our high-strength Alloy Steel AISI 4140 Bars. We understand that the success of your projects hinges on reliable quality, which is why we are committed to providing materials that meet the most demanding industrial standards, empowering Ethiopia’s growing manufacturing and engineering sectors with unwavering durability and performance.
The strength of AISI 4140 comes from its sophisticated composition, a precise blend of chromium and molybdenum that gives it remarkable characteristics. After heat treatment, these bars achieve an excellent balance of high tensile strength, impressive toughness, and good wear resistance. This makes the material exceptionally durable against fatigue and impact, allowing it to perform reliably in situations where ordinary steel would fail, ensuring a long service life even under substantial stress.
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 4140 | min. | 0.38 | 0.8 | 0.15 | – | 0.75 | – | 0.15 |
| max. | 0.43 | 1.10 | 0.35 | 0.04 | 1.00 | 0.04 | 0.25 | |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| AISI 4140 | 855 | 20 | 621 | 197 |
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 4140 | G41400 | 1.7225 |
You’ll find AISI 4140 bars performing critical roles across countless industries. They are the backbone of heavy-duty axles, high-strength shafts, and essential gears in the automotive and manufacturing sectors. The oil and gas industry relies on them for downhole tools, while construction and mining equipment depend on their toughness for components like spindles and bolts. Essentially, wherever you need a component that can handle high stress, repeated impacts, or significant pressure, AISI 4140 is the proven and reliable choice.
Desta 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 Addis Ababa, Ethiopia.
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