Data Sheets

Copper and Copper Alloys   |   Brass

CW606N Brass Bar

CommercialCZ131 ENCW606N

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. CZ131 / CW606N is an alpha/beta alloy.
The composition of brass alloy CZ131 / CW606N has been designed to provide a compromise between machinability, ductility and strength. Thus, it can be used in applications when machinability and riveting are required.

Applications
CZ131 / CW606N is typically used in:
Fasteners
Rivets
Domestic appliances
Automotive engineering
Hose fittings
Intricate parts such as clock components


Chemical Composition

EN 12164:2011
CW606N Brass
Chemical Element % Present
Zinc (Zn) balance
Aluminium (Al) 0.05 max
Iron (Fe) 0.1 max
Tin (Sn) 0.1 max
Manganese (Mn) 0.1 max
Others (Total) 0.2 max
Nickel (Ni) 0.3 max
Lead (Pb) 1.7 - 2.8
Copper (Cu) 61 - 63

Alloy Designations

CZ131 / CW606N corresponds to the following designations but may not be a direct equivalent:

UNS C35300   

ISO CuZn37Pb2


Supplied Forms

CZ131/CW606N is typically supplied as Round bar

  • Bar

Generic Physical Properties

Physical Property Value
Density 8.50 g/cm³
Melting Point 885 °C
Modulus of Elasticity 105 GPa
Thermal Conductivity 115 W/m.K
Electrical Resistivity 0.066 x10^-6 Ω .m

Mechanical Properties

EN 12164:2011
Bar - 10mm to 80mm Dia. / 10mm to 60mm AF
Mechanical Property Value
Proof Stress 200-350 MPa
Tensile Strength 340-480 MPa
Hardness Brinell 70 to 140 Max HB
Elongation A 20 to 8 %

Mechanical properties vary widely according to condition (soft/half hard/etc)


Corrosion Resistance

Corrosion resistance is rated from fair to excellent in most environments.

Cold Working

CZ131 / CW606N has only a fair rating for cold working.

Hot Working

Hot forming of CZ131 / CW606N is poor.

Heat Treatment

Solution treatment or annealing can be done by rapid cooling after heating to 430-600°C.

Machinability

This alloy has a machinability rating of 70 when Brass CZ121/CW614N is 100.

Weldability

Soldering of CZ131 / CW606N is rated as “excellent” and brazing is “good”. Butt welding is fair but all other welding methods are not recommended.