DESCRIPTION
Brass is an alloy mainly consisting of copper and zinc. Brass alloys can be easily shaped and are available in various colors. Brass has high thermal conductivity. CZ129 forging brass alloys have good forgeability. They are available in the form of rod.
CHEMICAL COMPOSITION
| Elements |
Min (%) |
Max (%) |
| Cu |
58.50 |
61.00 |
| Pb |
0.80 |
1.50 |
| Fe |
- |
0.20 |
| Total Others Excl. Fe |
- |
0.50 |
| Zn |
Remainder |
MECHANICAL PROPERTIES ACCORDING TO BS2874 (AS PER TEMPER M)
| Range (Inch)
|
From |
To |
UTS Min (Ksi) |
PS Min (Ksi) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
1.5 |
18 |
380 |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
25 |
- |
- |
| 40 |
75 |
350 |
- |
28 |
- |
- |
| Hex (A/F) |
3 |
18 |
380 |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
25 |
- |
- |
| 40 |
70 |
350 |
- |
28 |
- |
- |
| Square (A/F) |
3 |
18 |
380 |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
25 |
- |
- |
| 40 |
60 |
350 |
- |
28 |
- |
- |
| Rectangle (Thickness) |
3 |
18 |
380 |
- |
25 |
- |
- |
| 18 |
40 |
380 |
- |
25 |
- |
- |
| 40 |
50 |
350 |
- |
28 |
- |
- |
| Range (Inch)
|
From |
To |
UTS Min (Ksi) |
PS Min (Ksi) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
1.5 |
75 |
330 |
110 |
15 |
- |
- |
| Hex (A/F) |
3 |
70 |
330 |
110 |
15 |
- |
- |
| PHYSICAL
PROPERTIES |
| Density |
8.40 g/cc |
0.303 lb/in3 |
| CTE, linear |
26.0 ᶙm/m-˚C |
14.4 ᶙin/in-˚F |
| Specific Heat Capacity |
0.380 J/g-˚C |
0.0908 BTU/lb-˚F |
| Thermal Conductivity |
113 W/m-K |
784 BTU-in/hr-ft²-˚F |
| Melting Point |
880-900 ˚C |
1620 – 1650 ˚F |
| Solidus |
880 ˚C |
1620 ˚F |
| Liquidus |
900 ˚C |
1650˚F |
| FABRICATION
PROPERTIES |
| Technique |
Suitability |
| Machinability (CuZn39Pb3 = 100 %) |
95.00% |
| Capacity for Being Cold Worked |
Poor |
| Capacity for Being Hot Worked |
Excellent |
TYPICAL USES
- Builders Hardware
- Consumer
