Chetan Steel, based in Delhi, is a trusted manufacturer and supplier of high-quality industrial steel products. With years of expertise and a strong focus on precision, the company delivers components that combine strength, durability, and reliability. Among its premium offerings are Alloy Steel 4140 Fasteners, engineered to perform under demanding industrial conditions. Each fastener is meticulously manufactured under strict quality control to ensure long-lasting performance and safety. Chetan Steel’s dedication to technical excellence and customer satisfaction makes it a preferred choice for businesses across India seeking robust and dependable fastening solutions.
Alloy Steel 4140 Fasteners are made from chromium-molybdenum alloy steel, offering exceptional tensile strength, hardness, and resistance to wear and fatigue. Known for its superior mechanical properties, 4140 steel provides high toughness, durability, and the ability to withstand heavy loads and extreme temperatures. Heat-treated and precisely engineered, these fasteners maintain dimensional stability and structural integrity under demanding industrial conditions. Their optimized metallurgical composition ensures consistent, reliable performance, making them ideal for critical applications requiring secure, long-lasting, and high-performance fastening solutions.
| Standard | ASTM A193, ASTM A194 / ASME SA193, SA194 GR, IS, BS |
| Specification | IS, BS, ASTM |
| Size | M 02 to M 160 |
| Length | UPTO 5 METERS |
| Grade | B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M |
| Type | Bolts, nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, etc. |
| Element | AISI 4140 |
| Fe | 96.785 – 97.77 |
| Cr | 0.80 – 1.10 |
| Mn | 0.75 – 1.0 |
| C | 0.380 – 0.430 |
| Si | 0.15 – 0.30 |
| Mo | 0.15 – 0.25 |
| S | 0.040 |
| P | 0.035 |
| Grade AISI 4140 | 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 (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) | 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.
| Grade AISI 4140 | Metric | Imperial |
| Thermal expansion co-efficient (@ 0-100°C/32-212°F) | 12.2 µm/m°C | 6.78 µin/in°F |
| Thermal conductivity (100°C) | 42.6 W/mK | 296 BTU in/hr.ft².°F |
Alloy Steel 4140 Fasteners are widely used in industries that demand strength, reliability, and safety. They are commonly applied in oil and gas pipelines, automotive and heavy machinery assembly, construction, power generation, and industrial equipment. These fasteners are also employed in structural frameworks, industrial piping systems, and projects where high-strength, durable, and secure connections are essential. Engineered to endure heavy loads, extreme temperatures, and corrosive environments, Alloy Steel 4140 Fasteners provide reliable, long-lasting performance. Trusted by engineers and technicians for both new installations and maintenance, they are ideal for critical industrial operations requiring robust fastening solutions.
Chetan 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 Delhi, India.
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