C24000 Composition
C24000 brass is also known as Low Leaded Brass, and it is composed of 76% copper (Cu), 23% zinc (Zn), and 0.5% lead (Pb). The addition of lead in this alloy improves its machinability, formability, and corrosion resistance. However, it should be noted that lead is a toxic substance, and proper safety measures should be followed when handling and processing C24000 brass.
| Element | Content (%) |
|---|---|
| Cu | 80 |
| Zn | 20 |
C24000 Physical Properties
C24000 brass has a density of 8.6 g/cm3 and a melting point of 888°C (1630°F). It has a reddish-gold colour and a shiny surface when polished. C24000 brass is a non-magnetic alloy with good electrical and thermal conductivity, making it suitable for electrical contacts and heat exchangers.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.66 g/cm3 | 0.313 lb/in3 |
| Melting point – liquidus | 999°C | 1830°F |
| Melting point – solidus | 966°C | 1770°F |
C24000 Mechanical Properties
C24000 brass has good ductility, so it can be easily shaped, stretched, and hammered into various shapes and sizes. It has a low tensile strength of 360 MPa (52,000 psi) and a low yield strength of 170 MPa (25,000 psi). The elastic modulus of C24000 brass is 101 GPa (14.7 x 106 psi), with an elongation of 42% in 50 mm.
| Properties | Metric | Imperial |
|---|---|---|
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 117 GPa | 17000 ksi |
C24000 Equivalents
ASTM B134
ASTM B36
QQ W321
SAE J461
SAE J463
C24000 Uses
C24000 brass has many applications, including architectural hardware, valve stems, decorative accessories, plumbing fixtures, musical instruments, and ammunition cartridges. The lead content in C24000 brass makes it suitable for low-pressure plumbing applications, as it reduces the risk of dezincification. It is also used in marine applications due to its good corrosion resistance.
