CW116C

CW116C is a copper alloy known as a low-alloyed silicon bronze, also designated as CuSi3Mn1. It is recognised for its excellent corrosion resistance, moderate strength, good ductility, and suitability for marine and industrial applications.

Chemical Composition (approximate %)

• Copper (Cu): ~94.5 – 99.2%

• Silicon (Si): 2.4 – 3.6%

• Manganese (Mn): 0.5 – 1.3%

• Iron (Fe): 0.6 – 1.2%

• Zinc (Zn), Lead (Pb), and minor elements in trace amounts

Mechanical Properties

• Tensile Strength: Approx. 480 MPa

• Yield Strength: Around 260 – 280 MPa

• Elongation: 20 – 30%

• Hardness: Brinell 100 - 130 HB

Physical Properties

• Density: Around 8.5 g/cm³

• Melting Range: ~ 1025 – 1070 °C

• Electrical Conductivity: Typically about 7% IACS

• Thermal Conductivity: Moderate (around 35 W/m·K)

Applications

• Marine environment components such as propeller shafts, pump systems, and valve parts

• Architectural and decorative metalwork

• Electrical connectors and busbars

• Heat exchangers and plumbing fittings

Key Features

• Combines good mechanical strength with corrosion resistance

• Good wear resistance and toughness for marine and industrial uses

• Suitable for hot and cold working processes

• Exhibits good machinability and weldability