Cera H
| Cera H |
| Type |
Indication |
Colour |
| IV |
1,4,5,7,9 |
yellow |
| Au |
Pt |
Pd |
Ag |
Rh |
Ir |
Cu |
Sn |
Zn |
In |
Ga |
Rest |
| 73,1 |
1,5 |
5,8 |
16,0 |
- |
x |
- |
x |
2,8 |
x |
- |
- |
| Melting interval |
Density |
E-Modulus |
| 1000°C to 1065°C |
15,8 g/cm² |
105 GPa |
| Preheat temp. |
Casting temp. elec. |
Crucible |
| 800°C |
1180°C |
graphite/ceramic/glass carbon |
|
 |
| Hardness HV5 |
Tensile limit MPa |
| As cast |
220 |
After firing |
270 |
As cast |
653 |
After firing |
720 |
| Hard |
270 |
Soft |
155 |
Hard |
720 |
|
|
| Tensile strength MPa |
Elongation % |
| As cast |
760 |
After firing |
780 |
As cast |
6 |
After firing |
5 |
| Hard |
780 |
|
|
Hard |
5 |
|
|
| TEC |
Recommended solders |
| 25 - 500 °C |
16,1 µm/m.K |
Before firing |
Carrara solder 950°C |
| 25 - 600 °C |
16,5 µm/m.K |
After firing |
Carrara solder 750°C |
| Oxidation (without vacuum) |
Hardening (cooldown by air) |
| 860°C |
3 minutes |
550°C |
15 minutes |
|
|
|
