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 fabrication by hot forging. Free machining grades of brass set 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. CZ121 / CW614N is an alpha/beta alloy.
Brass alloy CZ121 / CW614N is used for machining. It has Lead added to the composition to improve machinability. The Lead remains insoluble in the microstructure of the brass and the soft particles act as chip breakers.
Applications - CZ112/CW712R, often referred to as Naval Brass is typically used in a range of marine and mechanical applications, including:
~ Heat Exchnager Tubeplates
~ Bolts, Nuts and Rivets
~ Other hardware for underwater applications
~ Machined Components
CZ112/CW712R corresponds to the following designation but may not be a direct equivalent:
CZ112/CW712R is typically supplied as Bar
The corrosion resistance of CZ112/CW712R is very good
The machinability of alloy CZ112/CW712R is 60 to 70% compared to CZ121/CW614N Brass which is rated as 100.