Nickel Iron Cobalt/Kovar
Nickel Iron Cobalt/Kovar
Kovar, also known as ASTM F 15 Alloy, is a controlled expansion alloy that is typically applied to high integrity glass and ceramic to metal seals, lids, lead frames and electronic package base. Kovar is made of nickel, cobalt and iron. This alloy is designed to adapt to computer, microwave, hydrid, semiconductor and space age technology demands, thus, making this an essential resource to the defense, aerospace and telecommunications industries.
National Electronic Alloys requires stringent vacuum melting processes that yield the highest level of cleanliness and a more homogenous alloy. We source our products from only the top quality mills and require they test the material to exceed industry standards. Our ASTM F15 alloy (Kovar©) is extremely stable, passing standard Phase transformation tests of -80°C, and remain stable down to - 196°C.
Your ASTM F15 alloy (Kovar©) supplier is just as important as the product and our experience on both the procurement side and supply side give us a unique insight into each customer’s specific needs. We are an ISO Certified Corporation. All ASTM F15 alloy (Kovar©) products are DFARS Compliant and also in conformance with Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. If our products meet or exceed the standards of our nation’s Department of Defense, we’re confident that they’ll meet your standards, too. Why take a chance on second rate material from another Kovar supplier when you can get the highest rated material in the industry from National Electronic Alloys? ASTM F15 alloy (Kovar©) is available in rods, sheets, coils and other forms.
National Electronic Alloys has Kovar available immediately for your usability. Contact us at your convenience for pricing and order inquiries.
TYPICAL
NOMINAL CHEMISTRY
|
NICKEL
(Ni) |
29.0 |
COBALT
(Co) |
17.0 |
MANGANESE(Mn) |
0.50 |
SILICON
(SI) |
0.20 |
SULFUR
(S) |
0.025 |
CHROMIUM(Cr) |
0.20 |
COPPER
(Cu) |
0.20 |
MOLYBDENUM
(Mo) |
0.20 |
ZIRCONIUM
(ZR) |
0.10 |
PHOSPHORUS
(P) |
0.025 |
CARBON
(C) |
0.06 |
IRON |
BALANCE |
ANNEALED |
85,000
MAX |
1/4
HARD |
90,000
TO 115,000 |
1/2
HARD |
105,000
TO 125,000 |
HARD |
120,000
MIN. |
TYPICAL
HARDNESS, ROCKWELL B
|
ANNEALED |
85
MAX |
1/4
HARD |
90
TO 93 |
1/2
HARD |
94
TO 96 |
National Electronic Alloys material is tested
and certified to exceed industry standards on
Phase Transformation, making it the most stable
material available.
|
TYPICAL
LINEAR COEFICIENT OF THERMAL EXPANSION
|
(cm
per cm. C x 10-6)
|
30
to 100 |
N/A |
30
to 200 |
5.5 |
30
to 300 |
5.1 |
30
to 350 |
N/A |
30
to 400 |
4.9 |
30
to 425 |
N/A |
30
to 450 |
5/3 |
30
to 500 |
6.2 |
30
to 550 |
N/A |
30
to 600 |
7.9 |
30
to 700 |
9.3 |
30
to 800 |
10.4 |
30
to 900 |
11.5 |
30
to 1000 |
N/A |
No
Phase Transformation to -196°C
National Electronic Alloys material is tested
and certified to exceed industry standards on
Phase Transformation, making it the most stable
material available.
|
ASTM
F15 Alloy
|
(KOVAR)
COIL THICKNESSES
|
.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, BRIGHT ANNEALED, MIL | 23011C,
CL.1
|
TK |
|
WIDTHS |
|
LENGTH |
.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 |
X
|
72 |
.092 |
X
|
Random |
X
|
72 |
.100 |
X
|
Random |
X
|
72 |
.115 |
X
|
Random |
X
|
72 |
.125 |
X
|
Random |
X
|
72 |
.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)
|
MIL
| 23011C CLASS 1
|
NI/IRON/COBALT
ALLOY PLATE - HOT ROLLED
|
.187
x 15 x 72 |
.250
x 15 x 72 |
.281
x 15 x 72 |
.312
x 15 x 72 |
.375
x 15 x 72 |
.437
x 15 x 72 |
.515
x 15 x 72 |
.625
x 15 x 72 |
.750
x 15 x 72 |
.875
x 15 x 48 |
1.00
x 15 x 31 |
1.50
x 15 x 31 |
2.00
x 15 x 24 |
ASTM
F15 Alloy
|
ROD
(KOVAR)
|
CERTIFIED
TO -196 DEGREES C
|
WITH
NO PHASE TRANSFORMATION
|
.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 |
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