Bronze is one of the oldest metals known to humanity, and its use dates back to the Bronze Age. However, the use and importance of bronze have remained strong over time. In fact, it has evolved into various forms, and one such form is aluminium bronze. This blog post will discuss the properties, uses, and other important aspects of c62400 aluminium bronze.
C62400 Composition
C62400 aluminium bronze is a high-strength alloy that comprises around 81-85% copper, 6-8% aluminium, and 4-7% iron. It also contains smaller amounts of nickel, manganese, and tin. These elements impart excellent mechanical and physical properties to the alloy.
| Element | Content (%) |
|---|---|
| Copper, Cu | 82.8-88.0 |
| Aluminium, Al | 10.0-11.5 |
| Iron, Fe | 2.0-4.5 |
| Manganese, Mn | ≤0.3 |
| Silicon, Si | ≤0.25 |
| Tin, Sn | ≤0.2 |
| Other | ≤0.5 |
C62400 Mechanical Properties
C62400 aluminium bronze has excellent mechanical properties, making it ideal for various applications. It has a tensile strength of about 100,000-120,000 psi and yield strength of about 45,000-55,000 psi. It also has good ductility, which means it can deform without breaking. The hardness of the alloy ranges from 160-200 BHN.
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell B | 92 | 92 |
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength | 330 MPa | 47900 psi |
| Elongation at break (in 50 mm, 11% reduction in area) | 14% | 14% |
| Elastic modulus | 117 GPa | 17000 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Charpy Impact (@ -23.0-27.0°C/ -9.40-80.6°F, keyhole) | 15.0 J | 11.1 ft-lb |
| Izod impact (@ -23.0-27.0°C/ -9.40-80.6°F) | 23.0 J | 17.0 ft-lb |
| Fatigue strength (@# of cycles 1.00e+8, reverse bending) | 235 MPa | 34100 psi |
| Machinability (UNS C36000 (free-cutting brass) = 100) | 50 | 50 |
| Shear modulus | 44 GPa | 6380 ksi |
C62400 Physical Properties
C62400 aluminium bronze has good physical properties, making it suitable for various industrial applications. It has a density of around 7.8 g/cm³, a thermal conductivity of 35-40 W/m•K, and a coefficient of thermal expansion of 16.3 x 10^-6/°C. It also has excellent corrosion resistance, which we will discuss later in this blog post.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.45 g/cc | 0.269 lb/in³ |
| Melting point | 1027°C | 1880°F |
C62400 Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@ 20-300°C/ 68-572°F) | 16.5 µm/m°C | 9.17 µin/in°F |
| Thermal conductivity (@ 20°C/ 68°F) | 58.6 W/mK | 407 BTU in/hr.ft.²°F |
C62400 Uses
C62400 aluminium bronze has a wide range of applications in various industries. It is commonly used in the marine industry for making propellers, bearings, and other components that require high strength and corrosion resistance. It is also used in aerospace, oil and gas, power generation, and automotive industries for making bushings, gears, couplings, and valve bodies.
C62400 Corrosion Resistance
C62400 aluminium bronze has excellent corrosion resistance, making it suitable for harsh environments. It has good resistance to seawater, brine, and other corrosive fluids. It is also resistant to stress corrosion cracking and erosion-corrosion. These properties make it highly suitable for marine and offshore applications.
C62400 Heat Treatment
C62400 aluminium bronze is a heat-treatable alloy, and heat treatment can enhance its properties. The alloy can be annealed at 870-890 °C for 1-2 hours, followed by air cooling or water quenching. This treatment improves the alloy’s strength, ductility, and hardness.
C62400 Machining
C62400 aluminium bronze is easy to machine and can be machined with conventional techniques. However, due to its high strength and hardness, it can cause tool wear and breakage. Proper machining techniques, such as sharp cutting tools, slow speed, and high feeds, should be employed to avoid this.
C62400 Welding
C62400 aluminium bronze can be welded using TIG, MIG, and spot welding techniques. However, proper surface preparation and cleaning should be done before welding to prevent contamination. Preheating may also be required to avoid cracking.
Conclusion
C62400 aluminium bronze is a high-strength, corrosion-resistant alloy with various industrial applications. Its excellent mechanical and physical properties make it ideal for harsh environments such as marine and offshore. Its heat-treatable and easy-to-machine properties make it popular for components like bushings, bearings, gears, and valve bodies. If you want a reliable and durable metal for your next project, consider using C62400 aluminium bronze.
Abhishek is a seasoned blogger and industry expert, sharing his insights and knowledge on various topics. With his research, Abhishek offers valuable insights and tips for professionals and enthusiasts. Follow him for expert advice on the latest trends and developments in the metal industry.
