C65500

C65500 is a high-silicon bronze alloy, also known as Copper Alloy B (CuSi3Mn1), notable for its combination of strength, corrosion resistance, and good formability. It is widely used in marine, architectural, electrical, and industrial applications.

Chemical Composition

• Copper (Cu): Approximately 95%

• Silicon (Si): About 3%

• Manganese (Mn): About 1%

• Iron (Fe): Approximately 0.8%

• Zinc (Zn): Up to 1.5%

• Lead (Pb): Max 0.05%

Mechanical Properties

• Ultimate Tensile Strength: Around 485 MPa

• Proof Stress (Yield Strength): Around 260 MPa

• Elongation: About 20%

• Hardness: Approximately 100-130 HB

Physical Properties

• Density: Approximately 8.53 g/cm³

• Melting Range: Approx. 970 - 1025°C

• Electrical Conductivity: Around 7% IACS

• Thermal Conductivity: Around 36 W/m·K

• Modulus of Elasticity: Approx. 117,000 MPa

Key Features

• Excellent hot and cold formability

• High strength with good ductility

• Excellent corrosion resistance, especially in seawater and chemical environments

• Attractive reddish-gold colour, useful for decorative architectural applications

• Low magnetic permeability

Applications

• Architectural fixtures and decorative metalwork

• Marine hardware such as propeller shafts, fasteners, and hull components

• Electrical components, connectors, and busbars

• Automotive valve seats and bushes

• Chemical processing equipment, including heat exchangers and pressure vessels