Kovar F15 Alloy Nickel Iron Cobalt: Glass & Ceramic Controlled Expansion Sealing Alloys"

KOVAR & RODAR F15 ALLOY
MIL I 23011C CLASS 1
NICKEL IRON COBALT | GLASS & CERAMIC SEALING ALLOYS

For High Integrity Glass & Ceramic To Metal Seals

ASTM F15 alloy (Kovar©) is a controlled expansion alloy most commonly used for high integrity glass and ceramic to metal seals, lids, lead frames and electronic package base. ASTM F15 alloy (Kovar©), a nickel cobalt iron alloy, is available in rods, sheets, coils and other forms.

ASTM F15 alloy (Kovar©) is designed to cope with computer, microwave, hybrid, semiconductor and space age technology demands, making them extremely valuable to the military and defense, telecommunications and aerospace industries. 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. We require a special vacuum process in melting to give you a more homogenous alloy, 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. National Electronic Alloys also provides Tips for machining Kovar Alloys along with other useful information, technical data and specifications.


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


TYPICAL TENSILE STRENTGH
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


ASTM F15 ALLOY
(KOVAR)
.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
.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


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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