Manganese Bronze (UNS C86300)
Manganese Bronze C86300, also known as SAE 430B, is a bronze alloy composed primarily of copper with a significant amount of manganese. It is known for its high strength, excellent wear resistance, and good corrosion resistance.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Copper | 60.0% | 66.0% |
| Aluminum | 5.0% | 7.5% |
| Iron | 2.0% | 4.0% |
| Lead | —— | 0.2% |
| Manganese | 2.5% | 5.0% |
| Tin | —— | 0.2% |
| Zinc | 22.0% | 28.0% |
The following table provides a list of bronze C86300 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7830 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 820 MPa |
| Tensile Strength (Yield) | 460 MPa |
| Young’s Modulus (E) | 100 GPa |
| Elongation at Break | 18% |
| Poisson’s Ratio (ν) | 0.34 |
| Brinell Hardness | 250 |
| Thermal Properties | Metric |
| Melting Point | 885 - 920 °C |
| Thermal Conductivity | 35 W/m·K |
| Specific Heat Capacity (Cp) | 377 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 2.16×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 5.2×106 S/m |
| Electrical Resistivity | 1.92×10-7 Ω·m |
| Magnetic Permeability | 1.09 |
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 Manganese Bronze C86300
| Advantages | Disadvantages |
|---|---|
| High Strength | High Cost |
| Good Wear Resistance | Limited Availability |
| Good Corrosion Resistance | |
| Machinability |
Applications of Manganese Bronze C86300
Manganese Bronze C86300, with its combination of strength, wear resistance, and corrosion resistance, finds application in various industries. Some common applications of Manganese Bronze C86300 include:
- Bushings and Bearings: The high strength and excellent wear resistance of Manganese Bronze C86300 make it well-suited for use in bushings and bearings. It can handle heavy loads, resist wear caused by friction, and provide long-lasting performance in industrial equipment, machinery, and automotive applications.
- Gears and Worm Wheels: Manganese Bronze C86300 is often used for manufacturing gears and worm wheels due to its high strength and wear resistance. These components require durability and the ability to withstand repeated use, making the alloy a suitable choice.
- Valve Bodies and Components: The corrosion resistance of Manganese Bronze C86300 makes it suitable for valve bodies and other components used in fluid handling systems. It can withstand exposure to water, chemicals, and other corrosive substances, making it ideal for applications in the marine industry, oil and gas sector, and chemical processing plants.
- Pump Components: Manganese Bronze C86300’s wear resistance and high strength make it suitable for various pump components, including impellers, casings, and wear rings. These components are subjected to intense forces and abrasive conditions, and the alloy’s properties help ensure their longevity and reliable performance.