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Cu-Ni 715 is a copper-nickel alloy that is resistant to corrosion in sea water. The alloy has good fatigue strength and relatively high thermal conductivity. This alloy is used mainly for flexible metal foil heaters. The alloy is readily formed in the annealed temper, and can be joined by the standard welding, brazing and soldering processes. Available Sizes: Cu-Ni 715 is available from Hamilton Precision Metals as strip product in thicknesses from 0.0005” to 0.010” (0.0127 mm to 0.254 mm) in widths up to 12” (304.8 mm). The material conforms to ASTM B122 and UNS C71500. Density:0.322 lbs./cu.in. Melting Point (Approx.):1170°C Electrical Resistivity @ R.T.:41.2 Microhm·cm Thermal Expansion Coefficient (20° to 95°C):15.5 x 10-6/°C Electrical Conductivity @ R.T:29.4 W/m·K Magnetic Attraction:None