A 4 Emissivity Table Metals
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Please note that these are only approximate values, which were taken from various sources.
Material Typical emissivity
Aluminum Non oxidized 0.02 - 0.1
Polished 0.02 - 0.1
Roughened 0.1 - 0.3
Oxidized 0.2 - 0.4
Brass Polished 0.01 - .05
Roughened 0.3
Oxidized 0.5
Copper Polished 0.03
Roughened 0.05 - 0.1
Oxidized 0.4 - 0.8
Chrome 0.02 - 0.2
Gold 0.01 - 0.1
Haynes Alloy 0.3 - 0.8
Inconel Electro
polished
0.15
Sandblast 0.3 - 0.6
Oxidized 0.7 - 0.95
Material Typical emissivity
Iron Non oxidized 0.05 - 0.2
Rusted 0.5 -0.7
Oxidized 0.5 - 0.9
Forget, blunt 0.9
Iron, casted Non oxidized 0.2
Oxidized 0.6 - 0.95
Lead Polished 0.05 - 0.1
Roughened 0.4
Oxidized 0.2 - 0.6
Magnesium 0.02 - 0.1
Mercury 0.05 - 0.15
Molybdenum Non oxidized 0.1
Oxidized 0.2 - 0.6
Monel (Ni-CU) 0.1 - 0.14
Nickel Electrolytic 0.05 - 0.15
Oxidized 0.2 - 0.5
Platinum Black 0.9
Silver 0.02
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