H. Cross Company - Precision Metal Ribbons and Strips
H. Cross Company - Precision Metal Wire

Alloy 42 and 52

Table of Contents
 

Standard Dimensions and Tolerances

Introduction
Typical Mechanical Properties
Typical Physical Properties
Forms
 


Introduction

Nominal Compositions

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.

Back to Top
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.