Brasses are alloys of Copper and Zinc. They may also contain small amounts of other alloying elements to impart advantageous properties. Brasses have high corrosion resistance and high tensile strength. They are also suited to hot forging. Free machining brass sets the standard for machining, by which other metals are compared.
Brasses are divided into two classes. The alpha alloys, with less than 37% zinc, and the alpha/beta alloys with 37-45% zinc. Alpha alloys are ductile and can be cold worked. Alpha/beta or duplex alloys have limited cold ductility and are harder and stronger. CZ108 / CW508L is an alpha alloy.
CZ108/CW508L is a high purity cold forming brass. It is used when severe bending properties are required. It can be machined but only with slow speeds and very light feeds.
Applications
CZ108 / CW508L is typically used in:
Scientific Applications
Radiators
Heat Exchangers
Decorative
Alloy Designations
CZ108 / CW508L corresponds to the following designations but may not be a direct equivalent:
UNS C27200
ISO CuZn37
Corrosion Resistance
The corrosion resistance of CZ108/CW508L is good to excellent in most environments. It is not suited for use with acetic acid, moist ammonia or ammonia compounds, hydrochloric acid and nitric acid.
Cold Working
Cold working of CZ108/CW508L is excellent and it can be readily drawn.
Hot Working
Fabrication is rated as fair.
Weldability
Soldering and brazing of CZ108/CW508L are both rated as “excellent”. Oxyacetylene welding is “good” and gas shielded methods are only “fair”. Resistance flash butt-welding may also be used.