C31400 Leaded Commercial Bronze

C31400 leaded commercial bronze maintains the corrosion resistance of other bronzes but also has better machinability. It works well in situations where corrosion can happen, but you don't need high strength.

C31400 is used in electrical, construction, and industrial industries. Common applications include:

  • C31400 Leaded Commercial Bronze Cable and Wire Connectors
  • C31400 Leaded Commercial Bronze Doorknobs
  • C31400 Leaded Commercial Bronze Fasteners
  • C31400 Leaded Commercial Bronze Picking Crates, Racks, & Fixtures
  • C31400 Leaded Commercial Bronze Screw Machine Parts

Diversified Bronze has solid and cored bronze bars in 144" lengths. Other lengths and non-standard sizes are available.

Technical Details

C31400 is made up of 89% copper, 9.25% aluminum, and 1.75% iron. The best welding techniques include:

  • Brazing
  • Butt
  • Soldering

C31400 Leaded Commercial Bronze Properties

Physical
Property Imperial Metric
Density 0.319 lb/in³ 8.83 g/cm³
Mechanical
Property Imperial Metric
Rockwell B Hardness 65 65
Tensile strength 37000-60000 psi 255-414 MPa
Yield strength 12000-55000 psi 83-379 MPa
Fracture strain 45% 45%
Machinability 80 80
Elastic modulus 16969 ksi 117 GPa
Poisson's ratio 0.34 0.34
Thermal
Property Imperial Metric
Thermal expansion coefficient (@20-300°C/68-572°F) 10.2 µin/in°F 18.4 µm/m°C
Thermal conductivity (@20.0°C/68°F) 1250 BTU in/hr ft² °F 180 W/mK