No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

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 Rosol
Orbital 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

----
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)"

Nathan J [last name deleted for privacy by Editor]
- Kent, England, UK
2007


----
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

Mohammad Ali Momenzad
- Tehran, Iran


----
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.




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"