Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Constantan Resistivity
Q. Could you please tell me the resistivity of constantan?
John L [last name deleted for privacy by Editor]- Notting Hill, London, England
2001
A. Constantan's electrical resistivity is 300 Ohms/Circular Mil-Foot, compared to 10.7 Ohms/CMF for 99.99% copper
Joe RosolOrbital Sciences Corp. - Greenbelt, Maryland, USA
2001
Q. In English please in OhmMetres would be nice! Thanks :-)
Graham M [last name deleted for privacy by Editor]- England
2002
A. 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
2002
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
2004
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Ed. note: It appears that Graham was using a scientific keyboard and the special text encoding that did not survive the trip through the world wide web.
A. The resistivity of constantan is 4.9*10^-7
Mohammed A [last name deleted for privacy by Editor]Student - England
2004
A. 4.9 x 10^-7
Paul [last name deleted for privacy by Editor]- Chicago, Illinois, USA
2004
A. 52*10^-8 Ohm meters
I also saw the 49*10^-8 but this said it was "constantan (eureka)"
- Kent, England, UK
2007
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Ed. note: Your number differs by 6 percent, Nathan, so it's not a terrible correlation.
A. 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
December 2, 2010
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
- Tehran, Iran
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Ed. note -- Gentle Readers: Sorry that the camaraderie & credibility of this particular thread is compromised by the removal of the names of the European participants. One of them, after giving permission to post his name -- rather than asking that his posting or name be removed -- filed a complaint under European data protection laws. The law compels us to remove the names of all European participants in this event. Apologies.
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