It provides high yield and fatigue strength with high electrical conductivity and good resistance to stress relaxation. This alloy excels in applications that miniaturization is key; in addition, it is also suitable for high temperature applications. 
        Alloy 174 features twice the electrical conductivity of brass, has a high repetitive cycle life, is easily formed into complex shapes, and is available with tin coatings or precious metal inlays.

 

Form
        Strip

Application
        High reliability automotive terminals
        Spring contacts for switches and relays
        Connectors for appliances and consumer electronics

Chemical Composion
        Beryllium : 0.15 – 0.50%
        Cobalt : 0.35 – 0.60%
        Copper : balance

Physical Properties
        Elastic Modulus - 20 106 psi  (138 Gpa)
        Density - 0.318 lb/in3  (38.8 g/cm3)
        Poisson's Ratio -  -0.3
        Relative Magnetic Permeability -  <1.01
        Electrical Conductivity – 45-60% IACS (26.2-34.9 MS/m)
        Thermal Conductivity 70°F / 20°C - 135 BTU/ft•hr•°F  (235 W/m•K)
        Coefficient of Thermal Expansion - 9.8 ppm/°F  (17.6 ppm/°C)
        Specific Heat (Heat Capacity) 70°F / 20°C -  0.08 BTU/lb•°F  (335 J/kg K)
        Specific Heat (Heat Capacity) 200°F / 100°C - 0.091 BTU/lb•°F  (381 J/kg K)
        Melting Range - 1880 - 1960 °F   (1030 - 1070 °C)
        
Mechanical Properties
        Mechanical properties may vary by product size, form and temper.

Available Sizes and Tolerances
        C17410 mill hardened strip is available in widths ranging from 0.050” to 16” (1.27 mm  to 452.7 mm) and in thicknesses ranging from 0.002” to 0.0787” (0.05 mm to 2.00 mm).