Introduction
Alloy 42 is a nickel iron alloy whose coefficient of expansion makes it
suitable for joining to ceramic chips in miniature electronic circuits.
Alloy 52 is a nickel iron alloy whose coefficient of expansion closely
mirrors soft glass. Applications for this product include magnetic reed
switches and seals that need controlled linear expansion to approximately
525 °C.
Typical Mechanical Properties
| |
|
Alloy 42 |
|
Alloy 52 |
| |
|
Annealed |
|
As Rolled |
|
Annealed |
|
As Rolled |
Ultimate Tensile
Strength (PSI) |
|
72,000 |
|
110,000 |
|
75,000 |
|
130,000 |
| Yield Strength (PSI) |
|
40,000 |
|
105,000 |
|
30,000 |
|
125,000 |
| Elongation |
|
35% |
|
5% |
|
30% |
|
1% |
| Modulus of Elasticity (PSI) |
|
21 x 10e6 |
|
|
|
24 x 10e6 |
|
|
| Poisson's Ratio |
|
0.25 |
|
|
|
0.29 |
|
|
 |
Typical Physical Properties
| |
|
Alloy 42 |
|
Alloy 52 |
| Density |
|
0.293 lbs/cu in |
|
0.300 lbs/cu in |
| Melting Point |
|
1440° C |
|
1425° C |
| Electrical Resistivity @ RT |
|
70 Microhm-cm |
|
43 Microhm-cm |
Temp. Coefficient Resistivity
(20 to
100° C) |
|
2500 PPM/ °C |
|
2900 PPM/°C |
Thermal Expansion Coefficient
(30 to
400° C) |
|
6.0 x 10e-6/°C |
|
10.0 x 10e-6/°C |
|
|
|
|
Forms
H Cross Company can supply these products in all forms including wire,
ribbon, strip, sheet and foil. See our Standard Dimensions and Tolerances
page for further information. If you do not see the size range you require
email or phone us for more information. |
