C35330

C35330 is a high-leaded, dezincification-resistant (DZR) brass alloy known for a strong combination of free machinability and corrosion resistance, making it ideal for plumbing hardware, valves, and fittings in aggressive environments.

Chemical Composition

• Copper (Cu): 59.5 – 64.0%

• Lead (Pb): 1.5 – 3.5%

• Arsenic (As): 0.02 – 0.25%

• Zinc (Zn): Balance (typically 35 – 37%)

• Tin (Sn): Up to 0.2%

• Iron (Fe): Up to 0.2%

• Other Impurities: Up to 0.5%

Mechanical Properties

• Tensile Strength: Approximately 372 – 510 MPa depending on temper and form

• Yield Strength: About 145 – 379 MPa

• Elongation: Typically 10 – 50%

• Hardness (Rockwell B): Around 40 – 80, depending on temper

Physical Properties

• Density: 8.39 g/cm³

• Melting Range: Solidus ~1650°F (899°C), Liquidus ~1660°F (904°C)

• Electrical Conductivity: 26% IACS

• Thermal Conductivity: 71 BTU/(ft²·hr·°F)

• Thermal Expansion Coefficient: 11.6 × 10⁻⁶ per °F

• Modulus of Elasticity: 103 GPa (15,000 ksi)

• Modulus of Rigidity: 38.6 GPa (5,600 ksi)

• Specific Heat Capacity: 0.09 BTU/lb/°F

Fabrication and Applications

• Excellent soldering and Brazing capability

• Good corrosion resistance in potable and acid waters

• Good machinability with a machinability rating of 100%

• Typically used in plumbing hardware, valves, fasteners, and fittings requiring dezincification resistance