Filiz Steel, based in Istanbul, Turkey, is a well-known manufacturer and supplier of precision-engineered alloy steel components, including **Alloy Steel 4140 Fasteners**. With a strong commitment to quality, performance, and adherence to international standards, Filiz Steel provides durable fastening solutions that are perfect for high-stress and high-temperature applications. By employing advanced machining and heat treatment techniques, the company guarantees that its 4140 fasteners meet the mechanical and dimensional specifications required by various industries. With reliable service and technical know-how, Filiz Steel has established itself as a trusted provider of high-strength 4140 fasteners in global markets.
**Alloy Steel 4140 Fasteners** are crafted from a chromium-molybdenum low-alloy steel, celebrated for its remarkable strength, toughness, and resistance to fatigue. These fasteners typically boast a tensile strength ranging from 655 to 1080 MPa, depending on the heat treatment process, and a yield strength of about 415 to 930 MPa. The inclusion of chromium enhances hardenability and wear resistance, while molybdenum boosts strength and toughness at higher temperatures. Additionally, 4140 fasteners are recognized for their good machinability and can be heat-treated to further enhance their performance.
| 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 |
**4140 fasteners** find extensive use in industries such as automotive, oil & gas, heavy machinery, aerospace, and construction, where high strength and durability are crucial. They are commonly used in applications like bolts, nuts, studs, and washers found in engines, drive systems, suspension components, structural assemblies, and pressure vessels. These fasteners are designed to perform reliably under dynamic loads, impacts, and vibrations, making them ideal for critical components in demanding environments. Their outstanding mechanical performance and versatility make Alloy Steel 4140 fasteners a top choice for engineers and manufacturers alike.
Filiz 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 Istanbul, Turkey.
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