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Glass-To-Metal Sealing Alloys

Interested in Glass-to-Metal Sealing Alloys?

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The data sheet for our Glass-to-Metal Sealing Alloys is presented below:
(Click here to download our Glass-to-Metal Sealing Alloys Data Sheet in .pdf format.)

GLASS-TO-METAL SEALING ALLOYS DATA SHEET


NOMINAL CHEMICAL COMPOSITION
NICKEL-IRON SEALING ALLOYS
NiCoFe - 54% Fe, 29% Ni, 17% Co
Alloy 42 - 58% Fe, 42% Ni
Alloy 46 - 54% Fe, 46% Ni
Alloy 52 - 49.5% Fe, 50.5% Ni
Alloy 36 - 64% Fe, 36% Ni
Alloy 42 to Alloy 46 - 52% Fe, 42% Ni, 6% Cr
Alloy 48 - 52% Fe, 48% Ni


APPLICABLE SPECIFICATIONS
Alloy
ASTM
Alloy
ASTM
NiCoFe
F-15, F-1466
Alloy 46
F-30
Alloy 36
A-658, B-753
Alloy 48
F-30
Alloy 42
F-30
Alloy 52
F-30
Alloy 42 to 46
F-31


MECHANICAL PROPERTIES (typically annealed material)
Tensile Strength
Yield Strength
Elongation (% in 50.8mm)
NiCoFe
525 Nmm-2
339 Nmm-2
30
Alloy 36
450 Nmm-2
278 Nmm-2
35
Alloy 42
570 Nmm-2
232 Nmm-2
30
Alloy 42 to Alloy 46
555 Nmm-2
278 Nmm-2
30
Alloy 46
555 Nmm-2
245 Nmm-2
30
Alloy 48
550 Nmm-2
247 Nmm-2
30
Alloy 52
555 Nmm-2
278 Nmm-2
35


PHYSICAL PROPERTIES
Density
Curie Temperature
Melting Point
NiCoFe
8.3 - 8.50 gcm-3
435oC
1450oC
Alloy 36
8.1 gcm-3
279oC
1427oC
Alloy 42
8.1 gcm-3
380oC
1427oC
Alloy 42 to 46
8.1 gcm-3
293oC
1427oC
Alloy 46
8.2 gcm-3
460oC
1427oC
Alloy 48
8.3 gcm-3
471oC
1427oC
Alloy 52
8.3 gcm-3
530oC
1427oC


THERMAL PROPERTIES
Thermal Conductivity
NiCoFe
21 Wm-1K-1
Alloy 36
13 Wm-1K-1
Alloy 42
13 Wm-1K-1
Alloy 42 to 46
15 Wm-1K-1
Alloy 46
14 Wm-1K-1
Alloy 48
16 Wm-1K-1
Alloy 52
17 Wm-1K-1


Coefficient of Expansion
(Bold face values are the limits specified in ASTM F-15)
Linear Coefficient Of Thermal Expansion x 10-6K-1
Temperature Range
Material
NiCoFe
Alloy 36
Alloy 42
Alloy 42-46
Alloy 46
Alloy 48
Alloy 52
30oC to 100oC
-
0.8 - 1.6
4.8
-
8.2
9.4
10.5
30oC to 150oC
-
-
4.6
-
8.1
9.4
10.5
30oC to 200oC
5.5
1.3 - 2.1
4.5
-
7.9
9.4
10.4
30oC to 250oC
-
-
4.5
-
7.8
9.3
10.4
30oC to 300oC
5.1
4.92
4.0 - 4.7
8.2
7.5
8.8
10.2
30oC to 325oC
-
-
4.7
-
-
-
-
30oC to 350oC
-
6.2 to 7.0
5.0
8.5 - 9.2
7.1 - 7.8
9.0
10.2
30oC to 375oC
-
-
5.5
-
7.5
-
-
30oC to 400oC
4.6 - 5.2
7.82
6.0
10.0
7.5
8.2 - 9.2
10.1
30oC to 425 oC
-
-
-
9.7 - 10.4
7.6
8.9
-
30oC to 450 oC
5.1 - 5.5
8.5 - 9.2
6.7 - 7.4
10.6
7.9
9.0
9.6 - 10.1
30oC to 475 oC
-
-
-
-
-
9.3
10.1
30oC to 500oC
6.2
9.72
8.0
11.2
8.2 - 8.9
9.4
10.0
30oC to 525 oC
-
-
-
-
-
-
10.4
30oC to 550oC
-
-
8.8
11.7
9.3
9.6 - 10.3
10.2 - 10.7
30oC to 600oC
7.9
11.35
9.5
12.2
9.8
10.4
10.8
30oC to 700oC
9.3
12.70
10.5
13.0
10.7
11.3
11.7
30oC to 800oC
10.4
13.45
11.4
13.7
11.6
12.1
12.5
30oC to 900oC
11.5
13.85
12.3
14.6
12.5
13.0
13.3
30oC to 1000oC
-
-
13.2
15.4
13.4
13.9
14.2


ELECTRICAL PROPERTIES
Electrical Resistivity
NiCoFe
48.9 uOhm cm
Alloy 36
82.3 uOhm cm
Alloy 42
71.5 uOhm cm
Alloy 42 - Alloy 46
94.8 uOhm cm
Alloy 46
46.1 uOhm cm
Alloy 48
48.2 uOhm cm
Alloy 52
43.2 uOhm cm