High Temperature Resistance Fused Silica Crucible for Gold Melting
Product Description
High temperature resistance fused silica crucible for gold melting
1.Mat
erial: most composition is SiO
2
( ≥ 80%),
Al
2
O
3
(≤17%) and other is 3%( K
2
O,Na
2
O,Fe
2
O
3
) .
2.Application: used for platinum , gold , and other high temperature alloy melting .
3.High in hardness, and pressure resistance is≥70MPa .
4.High thermal shock resistance,
low expansion coefficient, high heat stability .
5.Working temperature is 1350°C , max working temperature is 1600°C .
6.Long service life, is particularly suitable for thermal shock .
| Item | Unit | Data |
| Max. Working Temperature | °C | 1600 °C |
| Volume Density | g/cm ³ | ≥1.67 |
| Apparent porosity | % | ≤12.5 |
|
Cold Compressive Strength
|
MPa | ≥57 |
| Modulus of Rupture | MPa | ≥22 |
| Thermal Conductivity | W/(m ·K ) (20~1000 °C) | 0.8 |
| Coefficient of Thermal Expansion | ×10 -6 /K(20~800 °C) | ≤0.9 |
|
Item No |
Capacity (gr.) |
OD (mm) |
Height (mm) |
Weight (gr.) |
|
XTL-2 |
100 |
60 |
20 |
30 |
|
XTL-5 |
250 |
78 |
36 |
93 |
|
XTL-8 |
400 |
80 |
32 |
120 |
|
XTL-10 |
500 |
88 |
36 |
135 |
|
XTL-15 |
750 |
102 |
36 |
162 |
|
XTL-20 |
1000 |
108 |
42 |
167 |
|
XTL-30 |
1500 |
126 |
53 |
260 |
|
XTL-50 |
2500 |
140 |
54 |
318 |
|
XTL-100 |
5000 |
172 |
63 |
446 |
|
XTL-200 |
10000 |
220 |
75 |
886 |
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