Copper and Copper Alloys | Brass
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
|
EN 1652:1997 CW505L Brass |
|
|---|---|
| Chemical Element | % Present |
| Zinc (Zn) | balance |
| Aluminium (Al) | 0.02 max |
| Lead (Pb) | 0.05 max |
| Others (Total) | 0.1 max |
| Tin (Sn) | 0.1 max |
| Nickel (Ni) | 0.3 max |
| Copper (Cu) | 69 - 71 |
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
Mechanical Properties
|
EN 1652:1997 Sheet - 0.2mm to 5.0mm |
|
|---|---|
| Mechanical Property | Value |
| Proof Stress | 90-430 MPa |
| Tensile Strength | 270-480 MPa |
| Elongation A50 mm | 50-9 % |
| Hardness Vickers | 55 to 155 HV |
Mechanical properties vary widely according to condition (soft/half hard/etc)
Corrosion Resistance
Cold Working
This alloy has excellent cold working properties and is used for extreme deep drawing and cold working applications