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As a leader in the production of high-technology clad-metal products, Anomet applies this technology to the production of copper cored glass sealing alloys. These glass-to-metal sealing (GTMS) alloys result in a high quality product with uniform hermetic sealing characteristics capable of carrying up to six times more current than the same size solid wire.
Characteristics of Anomet's Copper Cored Glass-to-Metal Sealing Alloys
|
Characteristic
|
Description
|
| Complete Metallurgical Bond |
Provides complete hermetic sealing between the metals, excellent mechanical strength, ductility and greater reliability. |
| Copper Core |
Permits simple electrical connections and greater conductivity which allows a smaller conductor than solid for the same power requirements. |
| Core Ratio |
Unique processing allows any ratio of 446SS (Stainless), Alloy 52, Alloy 42-6,or Kovar® to copper can be made (i.e. diameter of glass sealing alloy to diameter of copper core).* |
| Custom Processing & Other Alloys |
Temper, surface finish, and packaging may all be customized to your specific requirements. Other glass sealing alloys are available on request. |
*Other glass sealing alloys are available on request.
Typical Specifications
| Typical Chemical Composition |
|
Iron |
Nickel |
Chromium |
Manganse |
Silicon |
Cobalt |
| Alloy 52 |
Bal. |
50.50 |
---- |
.3 max. |
.2 max. |
---- |
| Kovar® |
Bal. |
29 |
---- |
.3 max. |
.2 max. |
17 |
| Alloy 42-6 |
Bal. |
42.5 |
5.75 |
.50 max |
.25 max. |
---- |
| 446SS |
Bal. |
---- |
23-27% |
1.50 max. |
1.0 max. |
---- |
| Copper |
OFHC (Oxygen-Free High Conductivity) - 100% IACS Min. Conductivity |
| Ratio |
2:1 and 3:1 (Alloy to Copper) standard. Other ratios available on special request. |
| Packaging |
Coils can be supplied in any size up to 150 lbs. They can be supplied on spools, reels, or wrapped coils. |
| Temper |
Any customer specified temper available. |
| Conductivity |
14% IACS |
| Resistivity |
12 microhm cm |
| Dimensional Tolerances |
|
Diameter
|
Tolerance
|
|
Below .040" (1mm)
|
+/- .0005" (+/- .01mm)
|
|
.040" to .080" (1mm-2mm)
|
+/-.0006" (+/-.015mm)
|
|
.080" to .156" (2mm-4mm)
|
+/-.0010" (+/-.025mm)
|
|
.156" to .250" (4mm-6mm)
|
+/-.0015" (+/- .04mm)
|
Approximate Length/Weight Conversions
|
Diameter (inches)
|
FT/#
|
Diameter (mm)
|
M/Kg
|
|
Alloy 52
|
Alloy 42-6
|
446SS
|
Kovar®
|
Alloy 52
|
Alloy 42-6
|
446SS
|
Kovar®
|
|
.020
|
878
|
896
|
931
|
878
|
1
|
153
|
159
|
162
|
153
|
|
.030
|
390
|
398
|
414
|
390
|
1.5
|
68
|
70
|
73
|
68
|
|
.040
|
220
|
224
|
233
|
220
|
2
|
38
|
39
|
41
|
38
|
|
.050
|
140
|
143
|
149
|
140
|
2.5
|
25
|
24
|
25
|
25
|
|
.060
|
98
|
100
|
103
|
98
|
3
|
21
|
22
|
23
|
21
|
|
.070
|
72
|
73
|
76
|
72
|
3.5
|
17
|
18
|
19
|
17
|
|
.080
|
55
|
56
|
58
|
55
|
4
|
10
|
11
|
12
|
10
|
|
.090
|
43
|
44
|
46
|
43
|
|
|
|
|
|
|
.125
|
22.5
|
23
|
24
|
22.5
|
|
|
|
|
|
|
.156
|
14.5
|
15
|
15
|
14.5
|
|
|
|
|
|
|
.187
|
10
|
10
|
11
|
10
|
|
|
|
|
|
|
.250
|
6
|
6
|
6
|
6
|
|
|
|
|
|
Approximate Longitudinal Coefficients of Thermal Expansion
(in/in °F x 10-6)
|
Temp. Range (°F)
|
Solid Kovar
|
3:1 Ratio Kovar
|
Solid 446 Stainless Steel
|
3:1 Ratio 446 Stainless Steel
|
Solid Alloy 52
|
3:1 Ratio Alloy 52
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Solid Alloy 42-6
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3:1 Ratio Alloy 42-6
|
|
50-100
|
|
|
5.6
|
5.7
|
|
5.5
|
|
3.2
|
|
50-200
|
|
|
5.6
|
5.8
|
4.8
|
5.5
|
3.64
|
3.7
|
|
50-300
|
|
|
5.6
|
5.8
|
5.0
|
5.5
|
3.75
|
3.9
|
|
50-400
|
|
|
6.0
|
5.9
|
5.2
|
5.5
|
3.94
|
4.0
|
|
50-500
|
|
|
6.0
|
6.0
|
5.2
|
5.6
|
4.34
|
4.0
|
|
50-600
|
|
|
6.0
|
6.1
|
5.3
|
5.6
|
4.73
|
4.5
|
|
50-700
|
|
|
6.0
|
6.1
|
5.4
|
5.6
|
5.29
|
5.1
|
|
50-800
|
|
|
6.0
|
6.2
|
5.4
|
5.6
|
5.73
|
5.6
|
|
50-900
|
|
|
6.1
|
6.2
|
5.5
|
5.6
|
6.15
|
6.0
|
|
50-1000
|
|
|
6.2
|
6.3
|
5.5
|
5.7
|
6.56
|
6.3
|
|
50-1100
|
|
|
6.2
|
6.3
|
5.8
|
5.9
|
6.99
|
6.6
|
|
50-1200
|
|
|
6.3
|
6.4
|
6.2
|
6.1
|
7.22
|
7.0
|
|
50-1300
|
|
|
6.3
|
6.5
|
6.5
|
6.4
|
7.45
|
7.3
|
|
50-1400
|
|
|
6.4
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6.6
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6.7
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6.6
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7.56
|
7.6
|
Note: Because the Copper Cored/Clad composite inherently is not fully reversable, accurate theoretical calculations are impossible. Therefore, these values are only approximate and are offered only as a guideline.
*Other alloys also available. Copper Cored Hastelloy® is also available. Hastelloy® B2, Hastelloy® C276, Cu Cored Hastelloy®, Hastelloy Clad Copper. ®Hastelloy is a registered trademark of Haynes International.
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