Electrical resistivity of conductor material

Specific electrical resistivity of conductor material at 20°C. Values are taken from standard IEC 60287-1-1 Ed.2.1 when available.

Value for Aldrey (AL3) is taken from EN 50183, the value given by a manufacturer was 3.33e-8. According to document 'Aluminium in der Elektrotechnik und Elektronik' by Aluminium-Zentrale e.V., Düsseldorf, 1. Auflage, the electrical conductivity is <30.5 m/$\Omega$mm$^2$;.

Values for some other elements are:

Silver 1.587e-8
Gold 2.214e-8
Tungsten 5.28e-8
Molybdenum 5.34e-8
Zinc 5.90e-8
Iron 9.61e-8
Platinum 10.5e-8
Steel (alloy 0.5% carbon) 16.62e-8
Constantan (Cu-Ni alloy) 45.38e-8
Manganin (Cu86/Mn12/Ni2) 48.21e-8
Nichrome (80% Ni 20% Cr) 112.2e-8

Symbol

$\rho_c$

Unit

$\Omega$.m

Formulae

$\rho_c \frac{\pi {r_c}^2}{A_c}$

Related

$A_c$

Cross-sectional area of conductor [mm$^2$]

$M_c$

Material of conductor

$\pi$

Archimedes' constant $\pi$

$r_c$

Radius of conductor [mm]

Used in

$m_{z,c}$

Parameter m of conductor

$R_{c20}$

DC resistance of conductor at 20°C [$\Omega$/m]

$R_{co}$

Standard DC resistance of conductor [$\Omega$/km]

$\mathscr{z}_1$

Impedance of conductor outer surface [$\Omega$/m]

Choices

Material	Value	Reference
Cu	1.7241e-08	IEC 60287-1-1
Al	2.8264e-08	IEC 60287-1-1
AL3	3.253e-08	Manufacturer
Brz	3.5e-08	IEC 60287-1-1
CuZn	3.9e-07	engineeringtoolbox.com
Ni	6.93e-07	engineeringtoolbox.com
SS	7e-08	IEC 60287-1-1