Conductivity Comparison Table

 

Conductivity Comparison Table

Material	Resistivity ($\Omega\cdot$m)	Relative to Copper	Conductivity Rating
Silver	$1.59 \times 10^{-8}$	0.95	Best Conductor
Copper (Annealed)	$1.72 \times 10^{-8}$	1.00	Standard Baseline
Gold	$2.44 \times 10^{-8}$	1.42	Excellent (Corrosion Resistant)
Aluminum	$2.82 \times 10^{-8}$	1.64	Very Good (Lightweight)
Calcium	$3.36 \times 10^{-8}$	1.95	Good (Reactive)
Tungsten	$5.60 \times 10^{-8}$	3.26	Moderate (High Heat)
Zinc	$5.90 \times 10^{-8}$	3.43	Moderate
Nickel	$6.99 \times 10^{-8}$	4.06	Moderate
Iron	$9.70 \times 10^{-8}$	5.64	Fair
Platinum	$1.06 \times 10^{-7}$	6.16	Fair
Tin	$1.09 \times 10^{-7}$	6.34	Fair
Carbon Steel	$1.43 \times 10^{-7}$	8.31	Poor
Lead	$2.20 \times 10^{-7}$	12.79	Poor
Titanium	$4.20 \times 10^{-7}$	24.42	Very Poor
Manganin	$4.82 \times 10^{-7}$	28.02	Resistor Alloy
Constantan	$4.90 \times 10^{-7}$	28.49	Resistor Alloy
Stainless Steel	$6.90 \times 10^{-7}$	40.12	Very Poor
Mercury	$9.80 \times 10^{-7}$	56.98	Liquid/Poor
Nichrome	$1.10 \times 10^{-6}$	63.95	Heating Element
Graphite (Parallel)	$2.5 \times 10^{-6}$	~145	Semiconductor/Resistive
Graphite (Perp.)	$3.0 \times 10^{-3}$	~174,000	Highly Resistive