Microwave Engineer's Handbook

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Conductivity of Various Metals

Material	Conductivity, s/m at 20°C
Aluminum, commercial hard-drawn	3.54×10⁷
Brass, yellow	1.56×10⁷
Chromium	0.77×10⁷
Copper, annealed	5.80×10⁷
Copper, beryllium	1.72×10⁷
Gold, pure drawn	4.10×10⁷
Iron, 99.8% pure	1.00×10⁷
Iron, gray cast	0.05 ⺷ 1.0×10⁷
Platinum	0.83×10⁷
Steel	0.5 ⺷ 1.0×10⁷
Lead	0.48×10⁷
Nickel	1.28×10⁷
Silver, 99.98% pure	6.14×10⁷
Tantalum	0.71×10⁷
Tin	0.869×10⁷
Titanium	0.182×10⁷
Tungsten, cold-worked	1.81×10⁷
Zinc	1.74×10⁷

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