CW714R

CW714R is a naval brass alloy, similar to CW712R but with a slightly higher lead content, which aids machinability while maintaining corrosion resistance and strength. It is commonly used in marine and industrial applications requiring excellent durability and resistance to dezincification.

Chemical Composition

• Copper (Cu): 59.0 – 62.0%

• Tin (Sn): 0.5 – 1.0%

• Lead (Pb): 0.5 – 1.0%

• Zinc (Zn): Balance

• Iron (Fe): Up to 0.10%

• Nickel (Ni): Up to 0.20%

• Others: Up to 0.50%

Mechanical Properties

• Tensile Strength: Approximately 370 – 415 MPa

• Yield Strength: Around 170 – 185 MPa

• Elongation: 18 – 20%

• Hardness: 60 – 85 HRB, depending on size and temper

Physical Properties

• Density: Approximately 8.44 g/cm³

• Melting Range: Solidus ~1630°F (888°C), Liquidus ~1650°F (899°C)

• Electrical Conductivity: Around 26% IACS

• Thermal Conductivity: 67 BTU/(ft²·hr·°F)

• Coefficient of Thermal Expansion: 11.8 × 10⁻⁶/°F

Fabrication and Applications

• Excellent for hot working and forging

• Good machinability due to increased lead content

• Used widely for marine hardware, valve components, pump shafts, and fasteners requiring resistance to corrosion and good mechanical strength