Copper and Copper Alloys - Brass - CW505L Sheet

CW505L Sheet

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.


Chemical Composition

Spec: EN 1652:1997

CW505L Brass

Chemical Element % Present
Copper (Cu) 69.00 - 71.00
Aluminium (Al) 0.0 - 0.02
Lead (Pb) 0.0 - 0.05
Nickel (Ni) 0.0 - 0.30
Others (Total) 0.0 - 0.10
Tin (Sn) 0.0 - 0.10
Zinc (Zn) Balance

Properties

Spec: EN 1652:1997

Sheet - 0.2mm to 5.0mm

Mechanical PropertyValue
Tensile Strength 270-480 MPa
Elongation A50 mm 50-9 %
Hardness Vickers 55 to 155 HV
Proof Stress 90-430 MPa

Alloy Designations

CZ106 / CW505L corresponds to the following designation but may not be a direct equivalent:

CuZN30 


Supplied Forms

CZ106/CW505L is typically supplied as Sheet

  • Sheet

Corrosion Resistance


Cold Working

This alloy has excellent cold working properties and is used for extreme deep drawing and cold working applications