Chemistry Typical

Leaded Brass
C35000 60.0-63.0 0.8-2.0 0.15 max Balance
C35300 60.0-63.0 1.5-2.5 0.15 max Balance
Tin Brass
COPPER TIN LEAD IRON ZINC PHOSPHORUS
C42200 86.0-89.0 0.8-1.4 0.05 max 0.05 max Balance 0.35 max
C42500 87.0-90.0 1.5-3.0 0.05 max 0.05 max Balance 0.35 max

Physical Properties

Typical Density:
Leaded Brass: 0.306 lb/in3, 8.47 g/cm3
Tin Brass: 0.317 lb/in3, 8.78 g/cm3
Electrical Conductivity: (% IACS at 68° F 20°C, annealed):
Leaded Brass: 26%
Tin Brass: 28-31 %
Thermal Conductivity: BTU-in/hr-ft2-° F
At 68° F: 67 - 75
Mean Coefficient of Thermal Expansion: µin/in-° F 68 - 572 ° F: 10.2 - 11.3
Modulus of Elasticity: KSI
15 - 16 x 103 in tension

Applications

Leaded Brass:
Clock and watch components, Meter components, Lock components, Key blanks, Gears
Tin Brass:
Electrical switch springs, Fuse clips, Pen clips, Electrical connectors, Electrical Terminals