Esha Steel stands out as a top-notch manufacturer and supplier of high-quality Alloy Steel AISI 4140 Bars, proudly based in Kolkata and catering to a diverse array of industrial sectors. Renowned for its precision engineering, cutting-edge production methods, and rigorous quality control, the company consistently delivers bars that align with global standards for durability and performance. Esha Steel’s AISI 4140 Bars are highly regarded for their strength, toughness, and reliability, especially in demanding applications. With a robust presence in the automotive, construction, machinery, and oil and gas industries, Esha Steel is committed to building a strong reputation for providing consistent, high-performance alloy steel products, all while ensuring timely and customer-focused service.
Alloy Steel AISI 4140 Bars are crafted from a blend of chromium, molybdenum, and carbon, which work together to boost hardenability, wear resistance, and mechanical strength. These bars showcase remarkable tensile strength, solid fatigue resistance, and impressive toughness when heat-treated. Their well-balanced chemical composition guarantees stability even under high stress and temperature changes. Additionally, their mechanical properties include good impact resistance and dimensional stability, making AISI 4140 Bars perfect for demanding applications that require enduring strength, durability, and reliable performance in tough operational settings.
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 |
Across various industries, Alloy Steel AISI 4140 Bars are widely appreciated for their exceptional strength, toughness, and versatility. In the automotive field, they’re often used for shafts, axles, crankshafts, and gears. The oil and gas sector relies on them for drilling tools, wellhead components, and high-pressure equipment. In machinery and manufacturing, these bars are ideal for crafting dies, fixtures, tools, and mechanical parts that face heavy loads. Construction and engineering projects depend on AISI 4140 Bars for structural components that demand durability and precision. Their dependable performance under stress makes them a go-to choice for challenging industrial and high-impact environments.
Esha 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 Kolkata India.
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