Measure Surface
METALS
Aluminum
Oxidized
Alloy A3003
Oxidized
Roughened
Brass
Burnished
Oxidized
Copper
Oxidized
Electrical Terminal Blocks
Haynes
Alloy
Inconel
Oxidized
Sandblasted
Electoropolished
Iron Cast
Oxidized
Unoxidized
Molten
Iron Wrought
Dull
Lead
Rough
Oxidized
Molydbenum
Oxidized
Nickel
Oxidized
Platinum
Black
Steel
Cold-Rolled
Iron
Oxidized
Rusted
NON-METALS
Asbestos
0.95
Asphalt
0.95
24
Table 3. Surface Emissivity
Swich Setting
0.2-0.4
0.3
0.1-0.3
0.3
0.5
0.4-0.8
0.6
0.3-0.8
0.7-0.95
0.3-0.6
0.15
0.6-0.95
0.2
0.2-0.3
0.9
0.4
0.2-0.6
0.2-0.6
0.2-0.5
0.9
0.7-0.9
0.5-0.9
0.5-0.7