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'[EE]:: Resistance wire'
2007\08\10@181904 by Russell McMahon

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These 3 pages provide a superb summary of many of the major
characteristics of a wide range of resistance wires.
[Sense resistor and Igniter makers may find this useful].

Comparative names among manufacturers

       http://www.mwswire.com/resist2.htm

Major characteristics
resistivity, tensile strength chemical composition, coeff lin exp, SG,
magnetic attraction, melting point

       http://www.mwswire.com/resist1.htm

Nominal ohms per linear foot by type and wire gauge or diameter

       http://www.mwswire.com/resist3.htm



Kanthar's "Cuprothal 294" is what was traditionally known as
Constantan.
It's solderability is good.

MWS's names give less clue to material but included the resistivity
(as ohms/cmf) in the name which is highly useful as this varies
extremely widely. Even Constantan alloys can vary by a factor of 10
depending on the Cu-Ni ratio.




       Russell

2007\08\10@193100 by Gordon Williams

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Unfortunately there is no tensile strength vs temperature data.  Something
that I have been looking for.

Gordon Williams

{Original Message removed}

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