High-Silicon Bronze (UNS C65500)
High-silicon bronze C65500 is a copper alloy renowned for its excellent corrosion resistance in marine environments. It combines high strength with good formability, making it ideal for marine hardware, heat exchangers, and architectural components.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Copper | —— | Remainder |
| Iron | —— | 0.8% |
| Lead | —— | 0.05% |
| Manganese | 0.5% | 1.5% |
| Nickel | —— | 0.6% |
| Silicon | 2.8% | 3.8% |
| Zinc | —— | 1.5% |
The following table provides a list of bronze C65500 properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 8530 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 360 - 760 MPa |
| Tensile Strength (Yield) | 120 - 430 MPa |
| Shear Strength | 260 - 440 MPa |
| Young’s Modulus (E) | 105 GPa |
| Shear Modulus (G) | 39 GPa |
| Poisson’s Ratio (ν) | 0.34 |
| Thermal Properties | Metric |
| Melting Point | 970 - 1025 °C |
| Thermal Conductivity | 36 W/m·K |
| Specific Heat Capacity (Cp) | 380 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.8×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 4.06×106 S/m |
| Electrical Resistivity | 2.46×10-7 Ω·m |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of High-Silicon Bronze C65500
| Advantages | Disadvantages |
|---|---|
| Excellent corrosion resistance | High cost |
| High strength | Limited availability |
| Good formability |
Applications of High-Silicon Bronze C65500
High-Silicon Bronze C65500 finds applications in various industries due to its unique properties. Key applications include:
- Marine Hardware: The corrosion resistance makes it well-suited for marine applications. It is used in marine hardware such as propellers, shafts, fasteners, fittings, and valve components that are exposed to saltwater and harsh marine environments.
- Heat Exchangers: The excellent corrosion resistance and thermal conductivity make it suitable for heat exchanger tubes and components. It is used in applications where efficient heat transfer and resistance to corrosion are crucial, such as in power plants, chemical processing, and HVAC systems.
- Pump Components: The high strength and corrosion resistance make it suitable for pump components, including impellers, housings, and valves. It withstands the corrosive nature of fluids and provides durability in demanding pumping applications.
- Architectural Applications: This alloy is used in architectural applications due to its aesthetic appeal and corrosion resistance. It is used for decorative elements, sculptures, ornamental hardware, and architectural accents.
- Welding and Brazing: It can be joined through welding and brazing processes, making it useful for applications that require joining or repairing bronze components, including plumbing, piping, and metal fabrication.