|
Request for Quotation
| Data Sheet: |
Kovar - Alloy K |
|
Kovar Chemical Composition (Basic) Density 8.36
|
| Weight
% |
Ni |
Fe |
Co |
C |
Mn |
Si |
Al |
Cr |
Mg |
Zr |
Ti |
Cu |
Mo
|
| Alloy K |
29.0
|
53.0
|
17.0
|
0.04 max
|
0.50 max
|
0.20 max
|
0.10 max
|
0.20 max
|
0.10 max
|
0.10 max
|
0.10 max
|
0.20 max
|
0.20 max
|
SPECIFICATIONS
Kovar / Alloy
K is available in: Bar , Rod, Tube, Sheet, Strip and Wire.
|
Similar Specifications
UNS K94610
ASTM F 15
AMS 7726,
AMS 7727 and AMS 7728
MIL-I-23011
class 1
Werkstoff Nr. 1.3981
DIN 17745
AFNOR NF A54-301
S.E.W. 385
DILVER P |
Registered
Names
Kovar ®
Nicoseal
®
Nicosel
®
Rodar
®
Telcoseal ®
Sealvar ®
Alloy 29-17 ®
Nilo K ®
Dilver ®
Pernifer 29-18 ®
|
MATERIAL
USAGE
Kovar a nickel-iron-cobalt
controlled-expansion alloy containing 29% nickel. Its coefficient of expansion,
which decreases with rising temperature to the inflection point, matches the
expansion rate of borosilicate glasses and alumina ceramics.
Used for glass-to-metal seals in
applications requiring high reliability or resistance to thermal shock. Examples
are high-power transmitting valves, transistor leads and headers,
integrated-circuit lead frames, and photography flash bulbs.
MECHANICAL PROPERTIES
|
Kovar - Alloy K
|
|
Yield
Strength (0.1% Offset)
|
Tensile
Strength
|
Elongation
|
| psi |
MPa |
psi |
MPa |
(%)
|
| 49,000 |
340 |
75,000 |
520 |
42 |
Mechanical
Properties in the Annealed Condition.
AVAILABILITY
|
ASTM F15 Alloy
/ Kovar STRIP
KOVAR COIL THICKNESS
|
| .004 |
.0142 |
.045 |
| .0045 |
.0145 |
.050 |
| .005 |
.015 |
.059 |
| .006 |
.020 |
.060 |
| .007 |
.025 |
.062 |
| .008 |
.030 |
.064 |
| .0098 |
.035 |
.070 |
| .010 |
.040 |
.082 |
| .012 |
.043 |
|
|
ALL COIL SLIT TO YOUR WIDTH
|
| OTHER SIZES AVAILABLE UPON REQUEST |
|
ASTM F15 Alloy
/ Kovar SHEET COLD ROLLED,
KOVAR BRIGHT ANNEALED
MIL I 23011C, CL. 1
|
|
THICKNESS |
|
WIDTHS |
|
LENGTHS |
| .015 |
X |
12, 13, 24" |
X |
72 |
| .020 |
X |
12, 13, 24" |
X |
72 |
| .025 |
X |
12, 13, 24" |
X |
72 |
| .030 |
X |
12, 13, 24" |
X |
72 |
| .035 |
X |
12, 13, 24" |
X |
72 |
| .040 |
X |
12, 13, 24" |
X |
72 |
| .050 |
X |
12, 13, 24" |
X |
72 |
| .060 |
X |
12, 13, 24" |
X |
72 |
| .062 |
X |
12, 24" |
X |
72 |
| .072 |
X |
12, 24" |
X |
72 |
| .075 |
X |
12, 24" |
X |
72 |
| .080 |
X |
12, 24" |
X |
72 |
| .090 |
X |
Random Width |
X |
72 |
| .092 |
X |
Random Width |
X |
72 |
| .100 |
X |
Random Width |
X |
72 |
| .115 |
X |
Random Width |
X |
72 |
| .125 |
X |
Random Width |
X |
72 |
| OTHER SIZES AVAILABLE UPON
REQUEST |
|
ASTM F15 Alloy
/ Kovar STRIP
|
| .004 x 12 x COIL |
.0125 x 12 x COIL |
| .0045 x 12 x COIL |
.0142 x 12 x COIL |
| .005 x 12 x COIL |
.0145 x 12 x COIL |
| .006 x 12 x COIL |
.015 x 12 x COIL |
| .007 x 12 x COIL |
.020 x 12 x 72 |
| .008 x 12 x COIL |
.025 x 12 x 72 |
| .0095 x 12 x COIL |
.030 x 12 x 72 |
| .010 x 12 x COIL |
|
| OTHER SIZES AVAILABLE UPON REQUEST |
|
ASTM F15 Alloy
/ Kovar PLATE - HOT ROLLED
KOVAR / MIL I 23011C CLASS 1
NI/IRON/COBALT ALLOY
|
| .150 x 15 x 72 |
.500 x 15 x 72 |
| .164 x 15 x 72 |
.515 x 15 x 72 |
| .187 x 15 x 72 |
.540 x 15 x 72 |
| .210 x 15 x 72 |
.587 x 15 x 72 |
| .235 x 15 x 72 |
.625 x 15 x 72 |
| .250 x 15 x 72 |
.687 x 15 x 72 |
| .260 x 15 x 72 |
.700 x 15 x 72 |
| .281 x 15 x 72 |
.750 x 15 x 72 |
| .312 x 15 x 72 |
.850 x 15 x 72 |
| .320 x 15 x 72 |
.860 x 15 x 48 |
| .375 x 15 x 72 |
.875 x 15 x 48 |
| .390 x 15 x 72 |
1.00 x 15 x 31 |
| .400 x 15 x 72 |
1.50 x 15 x 31 |
| .425 x 15 x 72 |
2.00 x 15 x 24 |
| .437 x 15 x 72 |
|
| OTHER SIZES ALSO AVAILABLE |
| OTHER
SIZES AVAILABLE UPON REQUEST |
|
ASTM F15
Alloy / KOVAR ROD / BAR
CERTIFIED
TO -196 DEGREES C
WITH NO
PHASE TRANSFORMATION
|
|
DIAMETERS
|
| .040 |
.187 |
.500 |
1.375 |
| .050 |
.200 |
.562 |
1.500 |
| .060 |
.203 |
.625 |
1.625 |
| .062 |
.218 |
.750 |
1.750 |
| .100 |
.250 |
.875 |
2.0 |
| .125 |
.312 |
1.0 |
2.125 |
| .156 |
.375 |
1.125 |
2.5 |
| .178 |
.437 |
1.250 |
3.0 |
|
AVAILABLE UP TO 6" DIA.
|
|
OTHER
SIZES OF KOVAR AVAILABLE UPON REQUEST
|
Disclaimer
Every effort is made to ensure that
technical specifications are accurate. However, technical specifications
included herein should be used as a guideline only. All specifications are
subject to change without notice.
|
|
E-mail
sales@aircraftmaterialsuk.com
Site
© 2001 AirCraftMaterialsUK.com Ltd
Unit
7, Wycombe Industrial Mall, West End Street, High Wycombe, Bucks, HP11 2QY
Tel.
44 (0) 1494 857823
Tel.
44 (0) 8707 655 225/6 Fax. 44 (0) 8707 652 267/8
|
