Description
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. CZ114 /CW721R is a duplex or alpha/beta alloy. Brass alloy CZ114/CW721R is a versatile high strength, hot workable, machinable engineering alloy sometimes referred to as a Manganese Bronze or High Tensile Brass.
Application
Chemical Composition
| Chemical Element | % Present |
|---|---|
| Lead (Pb) | 0.80 - 1.60 |
| Tin (Sn) | 0.20 - 1.00 |
| Iron (Fe) | 0.20 - 1.20 |
| Aluminium (Al) | 0.30 - 1.30 |
| Copper (Cu) | 57.00 - 59.00 |
| Manganese (Mn) | 0.80 - 1.80 |
| Others (Total) | 0.0 - 0.30 |
| Nickel (Ni) | 0.0 - 0.30 |
| Zinc (Zn) | Balance |
Physical Properties
| Physical Property | Value |
|---|---|
| Density | 8.63 g/cm³ |
| Melting Point | 865 °C |
| Modulus of Elasticity | 96.5 GPa |
| Thermal Conductivity | 88.3 W/m.K |
| Electrical Resistivity | 0.090 x10^-6 Ω .m |
Mechanical Properties
| Mechanical Property | Value |
|---|---|
| Proof Stress | 180-270 MPa |
| Tensile Strength | 440-500 MPa |
| Hardness Brinell | 100-140 Max HB |
| Elongation A | 20-12 % |
