Fluke ThermoView TV40 Series User Manual page 75

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Table 9-1: Typical Emissivity Values for Metals
Material
Aluminum
Unoxidized
Oxidized
Alloy A3003, Oxidized
Roughened
Polished
Brass
Polished
Burnished
Oxidized
Chromium
Oxidized
Copper
Polished
Roughened
Oxidized
Gold
Haynes
Alloy
Inconel
Oxidized
Sandblasted
polished
Iron
Oxidized
Unoxidized
Rusted
Molten
Iron, Cast
Oxidized
Unoxidized
Molten
Iron, Wrought
Dull
Lead
Polished
Rough
Oxidized
Magnesium
Mercury
Molybdenum
Oxidized
Unoxidized
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8 – 14 µm
0.02-0.1
0.2-0.4
0.3
0.1-0.3
0.02-0.1
0.01-0.05
0.3
0.5
0.02-0.2
0.03
0.05-0.1
0.4-0.8
0.01-0.1
0.3-0.8
0.7-0.95
0.3-0.6
0.15
0.5-0.9
0.05-0.2
0.5-0.7
0.6-0.95
0.2
0.2-0.3
0.9
0.05-0.1
0.4
0.2-0.6
0.02-0.1
0.05-0.15
0.2-0.6
0.1
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Appendix
9
Typical Emissivity Values
77