Topics CoveredIntroductionChemical CompositionPhysical PropertiesMechanical PropertiesThermal PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Hot Working Cold Working AnnealingApplications
UNS C33500 low leaded brass is an alloy containing copper, zinc and lead. It has excellent machinability and corrosion resistance. It is produced by piercing, punching and machining.
The following datasheet will discuss in detail about UNS C33500 low leaded brass alloy.
The following table shows the chemical composition of UNS C33500 brass alloys.
The physical properties of UNS C33500 brass alloys are given in the following table.
The mechanical properties of UNS C33500 brass alloys are tabulated below.
|Yield strength (depending on temper)
|Elongation at break (in 203.2 mm)
|Modulus of elasticity
|Poissons ratio (calculated)
|Machinability (UNS C36000 (free-cutting brass) = 100)
The thermal properties of UNS C33500 brass alloys are tabulated below.
|Thermal expansion coefficient (@20-300°C/68-572°F)
|Thermal conductivity (@20°C/68°F)
||798 BTU in/hr.ft².°F|
Other designations that are equivalent to UNS C33500 brass alloys include:
Fabrication and Heat Treatment
The machinability rating of C33500 brass alloys is 60.
Welding methods such as soldering, brazing, oxyacetylene welding, gas shielded arc welding and butt welding are preferred for C33500 brass alloys. For this type of alloys, coated metal arc welding and seam welding are not preferred.
C33500 brass alloys have poor hot working property.
C33500 brass alloys have excellent cold working property.
Annealing of C33500 brass alloys is performed at temperatures ranging from 427 to 704°C (800 to 1300°F)
The following are the major applications of UNS C33500 copper alloys:
- Hose fittings
- Clock and lock parts
- Bicycle spoke nipples
- Plumbing valve components