National Electronic Alloys Summary of Products
A Company Dedicated To Customer Service & Quality
NICKEL IRON ALLOYS
PHYSICAL AND MECHANICAL PROPERTIES
COMPARISON CHART
PHYSICAL PROPERTIES
Property
Unit
Kovar
52 Alloy
48 Alloy
46 Alloy
42 Alloy
36 Alloy
Density
Lbs/in_
0.302
0.300
0.298
0.295
0.293
0.291
Specific
Gravity
8.36
8.30
8.25
8.17
8.12
8.05
Curie
Temperature
°F
815
986
880
860
716
535
Melting Point
°F
2640
2600
2600
2600
2600
2600
Electrical
Resistivity
Ohm-
cir mil/ft
294
260
290
277
430
495
Thermal
Conductivity
BTU/In/
ft_/hr/°F
120
97
90
79.2
74.5
72.6
MECHANICAL PROPERTIES
Tensile Strength
PSI x 1000
75
80
79
80
82
65
Yield Strength
PSI x 1000
50
40
36
35
40
40
Elongation
% in 2"
30
35
30
30
30
35
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