What products do engineers use constantan and nickel chrome for and why do they use them best answer gets 5 stars
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Constantan wire is used to make thermocouple junctions(copper-con.) for relatively low temperature work.
Nickel chrome wire is resistant to oxidation ,has a very high melting point and high electrical resistivity and is used in most electrical heating radiators in the home and industrial furnaces operating at temperatures up to 1050 degrees centigrade.
EDIT. I see your additional details and all I can add is that nickel -chromium alloys are often used in turbine blades and need good tensile and creep strength but I don't expect much of constantan in this regard.
Nickel chrome wire is resistant to oxidation ,has a very high melting point and high electrical resistivity and is used in most electrical heating radiators in the home and industrial furnaces operating at temperatures up to 1050 degrees centigrade.
EDIT. I see your additional details and all I can add is that nickel -chromium alloys are often used in turbine blades and need good tensile and creep strength but I don't expect much of constantan in this regard.
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But why does the turbine blade need a good tensile strenght
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