Nickel Resistance Alloys

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Grade Designations and Chemical Composition for Nickel Alloy Resistance Wire Header

Material Designation Nearest Fit Ni Cu Cr Fe Mn Al
Symbol Number UNS Other Name
NICKEL CHROME
Ni Cr 8020 2.4869 NO 6003 Ni Cr 80/20 80.0 20.0
Ni Cr 6015 2.4867 NO 6004 Ni Cr 60/16 60.0 15.0 25.0
CUPRO NICKEL
Cu Ni 44 2.0842 Hecnum 44.0 55.0 1.0
Cu Ni 30 Mn 2.0890 30.0 67.0 3.0
Cu Ni 23 Mn 2.0881 23.0 75.0 2.0
Cu Ni 10 2.0811 Alloy 90 10.0 90.0
Cu Ni 6 2.0807 Alloy 60 6.0 94.0
Cu Ni 2 2.0802 Alloy 30 2.0 98.0
IRON CHROME ALUMINIUM
Cr Al 20-5 1.4767 K 92400 ICA 135 20.0 75.0 5.0
Cr Al 25-5 1.4765 K 92500 ICA 145 23.0 71.0 6.0
Physical Properties Performance Nickel Alloy Resistance Wire Header

Material Designation Symbol Number UNS Other Name Resistivity Ohms/cm Density G/cm³ Linear Expansion Coefficient 10-6/°C Temperature °C Thermal Conductivity Wm-1 °C-1
NICKEL CHROME
Ni Cr 8020 2.4869 NO 6003 Ni Cr 80/20 108 8.35 17.5 20 – 1000 15.0
Ni Cr 6015 2.4867 NO 6004 Ni Cr 60/16 112 8.16 17.5 20 – 1000 13.3
CUPRO NICKEL
Cu Ni 44 2.0842 Hecnum 49 8.90 14.0 20 – 1000 21.1
Cu Ni 30 Mn 2.0890 37 8.90 15.7 20 – 1000 29.0
Cu Ni 23 Mn 2.0881 30 8.90 15.7 20 – 1000 35.0
Cu Ni 10 2.0811 Alloy 90 15 8.90 16.0 20 – 1000 60.0
Cu Ni 6 2.0807 Alloy 60 10 8.90 16.2 20 – 1000 90.0
Cu Ni 2 2.0802 Alloy 30 5 8.90 14.4 20 – 1000 160.0
IRON CHROME ALUMINIUM
Cr Al 20-5 1.4767 K 92400 ICA 135 5 8.90 14.0 20 – 1000 16.5
Cr Al 25-5 1.4765 K 92500 ICA 145 135 7.25 15.1 20 – 1000 16.0
Service Properties and Applications for Nickel Alloy Resistance Wire Header

Material Designation Symbol Number UNS Other Name Service Properties Applications
NICKEL CHROME
Ni Cr 8020 2.4869 NO 6003 Ni Cr 80/20 Contains long life additions making it eminently suitable for applications subject to frequent switching and wide temperature fluctuations. Can be used at operating temperatures up to 1150 °C. Control resistors, high temperature furnaces, soldering irons.
Ni Cr 6015 2.4867 NO 6004 Ni Cr 60/16 A Ni/Cr alloy with balance mainly Iron, with long life additions. It is suitables for use up to 1100°C, but the higher coefficient of resistance notes it suitable only for less exacting applications than 80/20. Electric heaters, heavy duty resistors, electric furnaces.
CUPRO NICKEL
Cu Ni 44 2.0842 Hecnum Medium resistivity combined with low temperature coefficient of resistance makes it ideal for resistors. It is suitable for temperatures up to 400°C. Thermocouples, resistors, heating wires and cables.
Cu Ni 30 Mn 2.0890 High resistance to oxidation and chemical corrosion. Maximum working temperature is 500°C Resistors, heating cables and detectors for fuses.
Cu Ni 23 Mn 2.0881 High resistance to oxidation and chemical corrosion. Maximum working temperature is 500°C Resistors, heating cords and mats.
Cu Ni 10 2.0811 Alloy 90 High resistance to oxidation and chemical corrosion. Maximum working temperature is 400°C Low value resistors, heating wires and mats.
Cu Ni 6 2.0807 Alloy 60 Characterised by low resistivity. High resistance to oxidation and corrosion. Maximum operating temperature is 300°C Tube electrical welding fittings, ribbons used for heating of bimetals.
Cu Ni 2 2.0802 Alloy 30 Characterised by low resistivity. High resistance to oxidation and corrosion. Maximum operating temperature is 300°C Tube electrical welding fittings, ribbons used for heating of bimetals.
IRON CHROME ALUMINIUM
Cr Al 20-5 1.4767 K 92400 ICA 135 A ferromagnetic alloy which can be used at temperatures up to 1300°C. Should be operated in dry surroundings to avoid corrosion. Can become embrittled at high temperatures. Heating elements of high temperature furnaces and radiant heaters.
Cr Al 25-5 1.4765 K 92500 ICA 145 Can be used in operating conditions up to 1350°C, although can become embrittled. Heating elements of high temperature furnaces and radiant heaters.