Bronze flat bars are available in several material grades, each with distinct properties suited for various applications. The most common grades include:
1. **C220 (Commercial Bronze)**: Composed of 90% copper and 10% zinc, this grade offers good corrosion resistance and is often used in architectural applications.
2. **C510 (Phosphor Bronze)**: Contains approximately 94% copper, 5% tin, and 1% phosphorus. It is known for its excellent spring properties, fatigue resistance, and corrosion resistance, making it ideal for electrical and mechanical applications.
3. **C544 (Phosphor Bronze)**: Similar to C510 but with added lead for improved machinability. It is used in applications requiring good wear resistance and machinability, such as bushings and bearings.
4. **C630 (Aluminum Bronze)**: Composed of copper, aluminum, and iron, this grade offers high strength and excellent corrosion resistance, especially in marine environments. It is used in heavy-duty applications like gears and valve components.
5. **C932 (Bearing Bronze)**: Also known as SAE 660, it contains copper, tin, lead, and zinc. This grade is widely used for bushings and bearings due to its good wear resistance and machinability.
6. **C954 (Aluminum Bronze)**: Contains copper, aluminum, and iron, providing high strength and excellent corrosion resistance. It is used in applications like marine hardware and pump components.
7. **C863 (Manganese Bronze)**: Known for its high strength and wear resistance, this grade is used in heavy-duty applications such as hydraulic cylinder parts and large valve components.
Each grade offers unique characteristics, making them suitable for specific industrial applications based on factors like strength, corrosion resistance, machinability, and wear resistance.