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HPM® 965

HPM® 965 is a high purity Nickel-Iron alloy that exhibits moderate electrical resistivity and a high temperature coefficient of resistance. This combination of electrical characteristics makes it suitable for use as a self-regulating heating element or temperature sensor.

The alloy can be readily formed in the annealed temper and can be joined by standard welding methods.

Available Sizes:

HPM® 965 is available from Hamilton Precision Metals as foil and strip product in thicknesses from 0.0005” to 0.015” (0.0127 mm to 0.38 mm) and in widths up to 12” (304.8 mm). It is also available as thin as 0.000100” (0.00254 mm) and in widths up to 4” (101.6 mm) maximum.

HPM® 965 NOMINAL COMPOSITION
Iron 35%
Manganese 0.25%
Nickel Balance


Mechanical Properties
HPM® 965 MECHANICAL PROPERTIES
ANNEALED
Ultimate Tensile Strength 85,000 PSI
Yield Strength (0.2% Offset) 35,000 PSI
Elongation in 2” * 35%
Hardness 137 HV

*The measured elongation will be less as thickness decreases to 0.002” and less.
These values may be adjusted by control of process variables – consult HPM for desired values


Physical Properties
HPM® 965 PHYSICAL PROPERTIES
Density 0.293 lb/in³
Melting Point (Approx.) 1425°C
Electrical Resistivity @ R.T. 21.2 Microhm·cm
Temperature Coefficient of Resistivity 0° to 100°C 5000 to 5500 ppm/°C
Thermal EMF vs. Cu (approx.) 0° to 100°C -44 Microvolts/°C
Thermal Expansion Coefficient 20° to 100°C 15 X 10 -6/°C
Thermal Conductivity @ 100°C (approx.) 29 W/m·K
Magnetic Attraction Yes

Typical values to guide alloy selection but are not a guarantee of minimum or maximum.