Resistivity and Temperature Coefficient at 20°C (68°F)

MaterialResistivity
ρ (Ω·m)
Temp. coefficient
α (per °C)
Conductivity
σ (S/m)
Carbon
(graphene)
1.0x10-8-0.00021.0x108
Silver1.59x10-80.0038196.29x107
Copper1.68x10-80.00395.95x107
Gold2.44x10-80.00344.10x107
Aluminium2.82x10-80.00393.5x107
Calcium3.36x10-80.00412.98x107
Tungsten5.6x10-80.00451.79x107
Zinc5.9x10-80.00371.69x107
Nickel6.99x10-80.00601.43x107
Lithium9.28x10-80.00601.08x107
Iron9.71x10-80.0056711.03x107
Platinum1.06x10-70.0039279.43x106
Tin1.09x10-70.00459.17x106
Gallium1.40x10-70.0047.10x106
Lead2.2x10-70.00394.55x106
Titanium4.2x10-7...2.38x106
Manganin4.82x10-70.0000022.07x106
Constantan4.9x10-70.0000082.04x106
Stainless steel6.90x10-70.000941.45x106
Mercury9.8x10-70.00091.02x106
Nichrome
(Ni,Fe,Cr)
1x10-60.00041x106
Kanthal
(Fe,Cr,Al)
1.2-1.5x10-6.........
Carbon
(graphite)
3-60x10-5-0.0005......
Carbon
(amorphous)
5-8x10-4-0.00051.25-2x103
Germanium4.60x10-1-0.0482.17x100
Sea water2.00x10-1...4.8x100
Silicon0.1-60...-0.075.....
Glass1-104x109.........
Hard rubber1-100x1013...1x10-14
Air1.3-3.3x1016...3-8x10-15
Quartz (fused)7.5x1017...1.3x10-18
PET10x1020...1x10-21

Ω=V/A
S=Ω-1=A/V

Electrical resistivity and conductivity:
ρ=1/σ
ρ=R·A/l

Temperature coefficient:
R(T)=R(T0)(1+α·ΔT)