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PRODUCT DATA of Constantan
MaterialConstantan
Product DatasheetConstantan
General InformationConstantan is a copper-nickel alloy that contains specific minor amounts of additional elements to achieve precise values for the temperature coefficient of resistivity.
Product TypePlate, Sheet, Foil, Strip, Bar, Wire
Chemical Composition55% Cu, 45% Ni
Name of ManufacturerHamilton Precision Metals
1780 Rohrerstown Road, Lancaster, PA 17602
Phone: (717) 569-7061
Fax: (717) 569-7642
EXPERIENCE IN PRACTICE
Equivalent DesignationsA-Alloy P-alloy, CuNi44 resistance alloy, cupronickel
PHYSICAL PROPERTIES
Specific Gravity8.88
ELASTIC PROPERTIES
Tensile Modulus165 GPa
ELECTRICAL PROPERTIES
Electrical Volume Resistivity5.08 e-7 ohm.m
THERMAL PROPERTIES
Thermal Conductivity21.2 W/m.K
Thermal Expansion Coefficient14.9 ustrain/°C
Melting Range1210 °C
Specific Heat0.393 J/g.K