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.
Brass Wire
Brass wire
| Alloy | Chemical Composition(%) | Physical Property | Mechanical Property | Application | |||||||
| Melting Point | Density | Thermal Expansion | Modulus of Elasticity | Thermal Conductivity | Tensile Strength | Elongation A [%] | Hardness | Proof Stress | |||
| CW508L / CZ108 |
Cu:62-64 Al:0.05 Fe:0.1 Pb:0.1 Ni:0.3 Sn:0.1 Other:0.1 Zn:Bal. |
916 °C | 8.44 g/cm³ | 20.5 x10^-6 /K | 103.4 GPa | 116 W/m.K | 130-700 MPa | 38 to 3 % | 60 to 185 HV | 110-500 MPa |
Blast Cleaning CW508L is ideally suited for cold forming, although somewhat worse due to the higher zinc content, but still almost identical. |
| CW614N / CZ121 |
Cu:57-59 Al:0.05 Fe:0.3 Pb:2.5-3.5 Ni:0.3 Sn:0.3 Other:0.2 Zn:Bal. |
875 °C | 8.47 g/cm³ | 20.9 x10^-6 /K | 97 GPa | 123 W/m.K | 360-580 MPa | 20 to 5 % | 100-160 HV | 230-350 MPa | High speed machined components Architectural extrusions Locks Hinges |
| CW617N | Cu:57-59 Al:0.05 Fe:0.3 Pb:1.6-2.5 Ni:0.3 Sn:0.3 Other:0.2 Zn:Bal. |
895 °C | 8.43 g/cm³ | 20.8 x10^-6 /K | 97 GPa | 114 W/m.K | 360-580 MPa | 35 to 10% | 100-160 HV | Mainly used in standard hot forging material. It has a good machinability capability due to lead content. Also this alloy compliance with RoHS II and REACH directives. |
|
| CF724R | Cu:58.5-61.5 Al:0.01 Pb:0.02 Sn:0.2 Si:0.2-0.4 Zn:Bal. |
875-895 °C | 380-580mpa | 120-180 HV | |||||||
| CW608N | Cu:60-61 Al:0.05 Fe:0.2 Pb:1.6-2.5 Ni:0.3 Sn:0.2 Other:0.2 Zn:Bal. |
885-895 °C | 8.44 g/cm³ | 20.5 x10^-6 /K | 106 GPa | 110 W/m.K | 360-580mpa | 20 to 8 % | 90-150 HV | Mainly used in the metal industry for a variety of products, in particular for precision mechanical and optical devices, watch parts and fittings. | |