Esha Steel stands out as a reliable manufacturer and supplier of Alloy Steel 4140 Coils in Kolkata, delivering top-notch, precision-engineered steel products tailored for tough industrial applications. With a strong reputation for quality, durability, and compliance with international standards, Esha Steel guarantees that every 4140 coil offers remarkable strength, toughness, and resistance to wear and corrosion. By employing cutting-edge manufacturing techniques and rigorous quality control, the company crafts coils that can handle heavy loads, high stress, and extreme operational conditions. Catering to sectors like automotive, aerospace, oil and gas, and heavy machinery, Esha Steel’s Alloy Steel 4140 Coils are prized for their reliability, longevity, and high performance.
These Alloy Steel 4140 Coils are made from medium-carbon chromium-molybdenum steel, enriched with elements like chromium, molybdenum, and manganese to enhance tensile strength, hardness, and wear resistance. They undergo meticulous heat treatment processes, including quenching and tempering, to boost mechanical properties such as toughness, fatigue resistance, and dimensional stability. This blend of a strong chemical composition and impressive mechanical performance ensures that Alloy Steel 4140 Coils consistently deliver reliable performance in high-stress, high-temperature, and demanding industrial settings.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
| Melting point | 1416°C | 2580°F |
| STAND | C(%) | Mn(%) | P(%) | S(%) | Si(%) | Cr(%) | Mo(%) | Ni(%) |
|---|---|---|---|---|---|---|---|---|
| ASTM A29 / A29M-05 | 0.38-0.43 | 0.75-1.00 | Max 0.035 | Max 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 | – |
| EN 10083/3-2006 | 0.38-0.45 | 0.60-0.90 | Max 0.025 | Max 0.035 | Max 0.40 | 0.90-1.20 | 0.15-0.30 | – |
| JIS G4053-2008 | 0.38-0.43 | 0.60-0.90 | Max 0.030 | Max 0.030 | 0.15-0.35 | 0.90-1.20 | 0.15-0.30 | ≤0.25 |
| roperties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength | 415 MPa | 60200 psi |
| Bulk modulus(typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus(typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break(in 50 mm) | 25.70% | 25.70% |
| Hardness, Brinell | 197 | 197 |
| Hardness, Knoop(converted from Brinell hardness) | 219 | 219 |
| Hardness, Rockwell B(converted from Brinell hardness) | 92 | 92 |
| Hardness, Rockwell C(converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 13 | 13 |
| Hardness, Vickers(converted from Brinell hardness) | 207 | 207 |
| Machinability(based on AISI 1212 as 100 machinability) | 65 | 65 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Esha Steel based in Kolkata India is a trusted manufacturer and supplier for Alloy Steel 4140 Coil of great quality. In fact, we have earned our reputation for providing a variety of top-notch steel products-such as Structural Steel, Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel-with emphasis on Structural Steel Sheets and Plates. Basic product lines include a complete range of Pipes, Tubes, Flanges, Forged Fittings, Bars, and other forms. Esha Steel is committed to its delivery and customer service, thus ensuring that they procure the best raw materials to guarantee high strength and durability with performance specifically for critical industrial applications. Contact us anytime for your Structural Steel Sheet and Plate needs!
Alloy Steel 4140 Coils find extensive use in industries that demand high-strength, durable, and corrosion-resistant steel products. In the automotive field, they are commonly used for gears, shafts, and structural components. The aerospace and defense sectors rely on these coils for precision components that require high toughness and fatigue resistance. Additionally, the oil and gas industry, along with heavy machinery, utilizes them in high-pressure equipment, valves, and industrial assemblies. Their exceptional mechanical properties, wear resistance, and durability make Alloy Steel 4140 Coils perfect for applications that need long-term reliability, strength, and operational efficiency.
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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