Shalan Steel is a reliable manufacturer and supplier of top-notch Alloy Steel 4140 Fasteners based in Kuala Lumpur, Malaysia. We cater to a variety of industries, including oil and gas, construction, automotive, power generation, and heavy machinery. Alloy Steel 4140 is a chromium-molybdenum grade that stands out for its remarkable strength, toughness, and wear resistance. Our fasteners are crafted using cutting-edge machining and heat treatment techniques to guarantee precision, high performance, and adherence to international standards. Built to withstand high stress and harsh conditions, these fasteners promise long-lasting reliability for both structural and mechanical applications.
Alloy Steel 4140 Fasteners are made up of carbon, chromium, molybdenum, and manganese, striking the perfect balance between hardness, strength, and toughness. They usually showcase tensile strengths between 850 to 1000 MPa, along with impressive fatigue resistance and impact toughness. The chromium content enhances hardenability, while molybdenum boosts strength at higher temperatures and improves wear resistance. These fasteners go through controlled quenching and tempering processes, resulting in a refined microstructure that optimizes their mechanical properties for demanding engineering tasks.
| 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 find their place in critical applications that require high load-bearing capacity and durability. You’ll often see them used to connect components in oilfield equipment, gear assemblies, heavy machinery, automotive suspension systems, pressure vessels, and structural frameworks. They’re also perfect for situations where vibration, impact, and abrasive conditions are a factor. With their combination of mechanical strength, toughness, and wear resistance, these fasteners help reduce maintenance needs, extend service life, and ensure reliable performance, making Alloy Steel 4140 fasteners a smart choice for tough industrial environments.
Shalan 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 Kuala lumpur, Malaysia.
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