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Steatite
– Crystalline
Magnesium Silicate
Steatite is a crystalline
form of magnesium silicate. It is a low loss, low cost, relatively good
strength insulating material which can function safely at temperatures
up to 2,000° F. Applications include high frequency insulation,
resistor cores and casings, and appliance insulators.
Shapes shown are not to scale.
| Steatite
Properties |
Units |
ACT
300 |
ACT
500 |
| Material |
|
L-3
Grade Dense Steatite |
L-5
Grade Dense Steatite |
| General
Application |
|
High
Frequency & Appliance Insulators, Resistor Cores & Casings |
Lower
Electrical Loss, Higher Strength & Higher Cost than L-3
Steatite |
| Color
(Fired) |
|
White |
Cream |
| Porosity |
% |
0-.05 |
0-.05 |
| Density |
gm/cm3 |
2.6 |
2.7 |
| Flexural
Strength |
psi |
20,000 |
20,000 |
| Comprehensive
Strength |
psi |
75,000 |
80,000 |
| Tensile
Strength |
psi |
8,400 |
10,000 |
| Linear
Coefficient of Thermal Expansion |
(cm/cm/°C)
25-300°C
25-700°C
|
8.1
X 10-6
8.5
X 10-6 |
7.2
X
10-6
8.1 X
10-6 |
| Dielecctric
Constant at 25°C |
1
MH
10 MH |
5.8
5.7 |
6.2
6.5 |
| Dielectric
Strength |
Volt/mil |
225 |
230 |
| Te
Value |
°F
°C |
806
430 |
1382
750 |
| Thermal
Conductivity at 25°C |
cal/sec/cm2/cm/°C |
0.006 |
0.006 |
| Thermal
Shock |
|
Fair |
Fair |
Safe
Use
Temperature |
°F
°C |
2200
1200 |
2300
1260 |
Above values are
test specimen results and actual shapes may vary in value.
We can work with other formulations as well.
|
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a Quote |
| Call:
724.353.1585
Fax: 724.353.1050
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Online Form |
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New |
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| Quality |
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9002 Registered by Quality System Registrar
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