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topic 8486

Constantan Resistivity


Could you please tell me the resistivity of constantan?

John L [last name deleted for privacy by Editor]

- Notting Hill, London, England


Constantan's electrical resistivity is 300 Ohms/Circular Mil-Foot, compared to 10.7 Ohms/CMF for 99.99% copper

Joe Rosol
Orbital Sciences Corp. - Greenbelt, Maryland, USA


In English please in OhmMetres would be nice! Thanks :-)

Graham M [last name deleted for privacy by Editor]
- England


Try goodfellow on the internet. It gives all the figures (inc. resistivity) for various materials inc. constantan.

J S. [last name deleted for privacy by Editor]
- London, Britain


1337 m8 $3x0r p0$7 |>u|>3. I 0w|\| j00 A11 you p30|\|s

Graham B [last name deleted for privacy by Editor]
Physics - Maidenhead, Berks, UK

Ed. note: It appears that Graham was using a scientific keyboard and special text encoding that did not survive the trip across the world wide web.


The resistivity of constantan is 4.9*10^-7

Mohammed A [last name deleted for privacy by Editor]
Student - England


4.9 x 10^-7

Paul [last name deleted for privacy by Editor]
- Chicago, Illinois, USA


52*10^-8 Ohm meters
I also saw the 49*10^-8 but this said it was "constantan (eureka)"

Nathan J [last name deleted for privacy by Editor]
- Kent, England, UK

Ed. note: Your number differs by 6 percent, Nathan, so it's not a terrible correlation.

December 2, 2010

Found experimentally constantan resistivity to be 4.9*10^(-7) so it is correct!

bob r [last name deleted for privacy by Editor]
- Paris France

May 3, 2012

Q. Hi
what is the resistivity of constantan with this alloy:
cu base,59.5103
Zn 0.0014
Pb 0.0022
Sn 0.0047
P 0.0099
Mn 0.843
Fe 0.517
Ni 38.97
Si 0.0292
Mg 0.0182
Cr 0.0052
Co 0.0422
S 0.0082
B 0.0064
C 0.0257
Nb 0.0035
Ri 0.0029
and diameter :1.2 mm

Mohammad Ali Momenzad
- Tehran, Iran

Ed. note -- Gentle Readers: Sorry that the camaraderie and credibility of this particular page has been compromised by the removal of names. One of the participants (we don't know which one), rather than asking that his posting be removed or his name be removed from his posting, filed a complaint about it under European data protection laws. Not knowing which participant it was, we had to remove all of the European based names. Apologies.

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