Emissivity values of common materials Material Aluminum, polished Aluminum, rough surface Aluminum, strongly oxidized Asbestos board Asbestos fabric Asbestos paper Asbestos slate Brass, dull, tarnished Brass, polished Brick, common Brick, glazed, rough Brick, refractory, rough Bronze, porous, rough Bronze, polished Carbon, purified Cast iron, rough casting Cast iron, polished Charcoal, powdered Chromium, polished Clay, fired Concrete Copper, polished, Copper, commercial burnished Copper, oxidized Copper, oxidized to black Electrical tape, black plastic Enamel ** Formica Frozen soil Glass Glass, frosted Gold, polished Ice Iron, hot rolled Iron, oxidized Iron, sheet galvanized, burnished Iron, sheet, galvanized, oxidized Iron, shiny, etched
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Emissivity* 0.05 0.07 0.25 0.96 0.78 0.94 0.96 0.22 0.03 0.85 0.85 0.94 0.55 0.10 0.80 0.81 0.21 0.96 0.10 0.91 0.92 0.01 0.07 0.65 0.88 0.95 0.90 0.93 0.93 0.92 0.96 0.02 0.97 0.77 0.74 0.23 0.28 0.16
Material Iron, wrought, polished Lacquer, Bakelite Lacquer, black, dull Lacquer, black, shiny Lacquer, white Lampblack Lead, gray Lead, oxidized Lead, red, powdered Lead, shiny Mercury, pure Nickel, on cast iron Nickel, pure polished Paint, silver finish** Paint, oil, average Paper, black, shiny Paper, black, dull Paper, white Platinum, pure, polished Porcelain, glazed Quartz Rubber Shellac, black, dull Shellac, black, shiny Snow Steel, galvanized Steel, oxidized strongly Steel, rolled freshly Steel, rough surface Steel, rusty red Steel, sheet, nickelplated Steel, sheet, rolled Tar paper Tin, burnished Tungsten Water Zinc, sheet
Emissivity* 0.28 0.93 0.97 0.87 0.87 0.96 0.28 0.63 0.93 0.08 0.10 0.05 0.05 0.31 0.94 0.90 0.94 0.90 0.08 0.92 0.93 0.93 0.91 0.82 0.80 0.28 0.88 0.24 0.96 0.69 0.11 0.56 0.92 0.05 0.05 0.98 0.20
*Emissivities of almost all materials are measured at 0 °C but do not differ significantly at room temperature. **Paint, silver finish is measured at 25 °C and Paint, enamel at 27 °C
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