C86400

C86400 is a high-strength manganese bronze alloy also known as leaded manganese bronze or high-strength yellow brass. It is composed mainly of copper, zinc, aluminium, iron, manganese, and lead, with the lead added to enhance machinability. This alloy is widely used in applications requiring excellent strength, wear resistance, and corrosion resistance.

Chemical Composition of C86400

• Copper (Cu): 56.0 - 62.0%

• Zinc (Zn): 34.0 - 42.0%

• Aluminium (Al): 0.50 - 1.50%

• Iron (Fe): 0.40 - 2.00%

• Manganese (Mn): 0.10 - 1.50%

• Lead (Pb): 0.50 - 1.50%

• Nickel (Ni): Up to 1.00%

• Tin (Sn): Up to 1.50%

Mechanical and Physical Properties

• Tensile Strength: Approximately 65 ksi (448 MPa)

• Yield Strength (0.5% offset): About 25 ksi (172 MPa)

• Elongation: Around 20%

• Brinell Hardness: Approximately 90 BHN

• Density: Approximately 8.33 g/cm³

• Melting Point: Solidus ~1583°F (862°C), Liquidus ~1616°F (880°C)

• Electrical Conductivity: About 19% IACS at 68°F (20°C)

• Thermal Conductivity: 88.3 W/m·K at 20°C

• Modulus of Elasticity: 14,000 ksi (96,527 MPa)