CZ135
CZ135 is a high tensile brass which is alloyed with aluminum, manganese and silicon etc. By alloying brass with strength-increasing elements, you get an alloy that is almost as hard as aluminum bronze, but considerably easier to process. The material also has good corrosion and wear resistance.
Chemical Composition
| Elements |
Min (%) |
Max (%) |
| Cu |
57.00 |
60.00 |
| Pb |
- |
0.80 |
| Sn |
- |
0.30 |
| Fe |
- |
0.50 |
| Al |
1.00 |
2.00 |
| Mn |
1.50 |
3.50 |
| Ni |
- |
0.20 |
| Si |
0.30 |
1.30 |
| Total Others |
- |
0.50 |
| Zn |
Remainder |
Mechanical Properties according To BS2874 CZ135 (As Per Temper M)
| Range (mm) |
From |
To |
UTS Min (N/mm²) |
UTS Max (N/mm²) |
PS Min (N/mm²) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
1.5 |
40 |
550 |
- |
270 |
12 |
- |
- |
| 40 |
75 |
550 |
- |
270 |
12 |
- |
- |
| Hex (A/F) |
3 |
40 |
550 |
- |
270 |
12 |
- |
- |
| 40 |
70 |
550 |
- |
270 |
12 |
- |
- |
| Square (A/F) |
3 |
40 |
550 |
- |
270 |
12 |
- |
- |
| 40 |
60 |
550 |
- |
270 |
12 |
- |
- |
| Rectangle |
Thickness |
3 |
40 |
550 |
- |
270 |
12 |
- |
- |
| Thickness |
40 |
50 |
550 |
- |
270 |
12 |
- |
- |
Physical Properties
| PHYSICAL PROPERTIES |
| Melting range |
875-910 ?C |
| Density |
8.0 g/cm³ |
| Electrical Conductivity |
7-8 MS/m |
| Heat conductivity |
60-70 W/(m*K) |
| Heat capacity |
377 J/(kg*K) |
| Coefficient of thermal expansion |
20 10??/ K |
| Young’s modulus |
95 GPa |
Fabrication Properties
| FABRICATION PROPERTIES |
| Technique |
Suitability |
| Cold formed |
Poor |
| Hot worked |
Good |
| Machinability Rating |
30% |
| Resistance to Corrosion |
Excellent |
| Suitability for Soldering |
Excellent |
