Fluke endurance series - Page 142

Endurance
®
Series
Users Manual, Rev. 2.0, Jun 2020
142
Table 15-1: Typical Emissivity Values for Metals
Metals
Emissivity
Material
1 µm
1.6 µm
2.4 µm
Aluminum
Unoxidized
0.1-0.2
0.02-0.2
0.02-0.2
Oxidized
0.4
0.4
0.2-0.4
Alloy A3003,
Oxidized
0.4
0.4
Roughened
0.2-0.8
0.2-0.6
0.2-0.6
Polished
0.1-0.2
0.02-0.1
0.02-0.1
Brass
Polished
0.1-0.3
0.01-0.05
0.01-0.05
Burnished
0.4
Oxidized
0.6
0.6
0.6
Chromium
0.4
0.4
0.05-0.3
Oxidized
Copper
Polished
0.03
0.03
Roughened
0.05-0.2
0.05-0.2
Oxidized
0.2-0.8
0.2-0.9
0.7-0.9
Gold
0.3
0.01-0.1
0.01-0.1
Haynes
Alloy
0.5-0.9
0.6-0.9
0.6-0.9
Inconel
Oxidized
0.4-0.9
0.6-0.9
0.6-0.9
Sandblasted
0.3-0.4
0.3-0.6
0.3-0.6
polished
0.2-0.5
0.25
0.25
Iron
Oxidized
0.4-0.8
0.5-0.8
0.7-0.9
Unoxidized
0.35
0.1-0.3
0.1-0.3
Rusted
0.6-0.9
0.6-0.9
Molten
0.35
0.4-0.6
0.4-0.6
Iron, Cast
Oxidized
0.7-0.9
0.7-0.9
0.7-0.9
Unoxidized
0.35
0.3
0.1-0.3
Molten
0.35
0.3-0.4
0.3-0.4
Iron, Wrought
Dull
0.9
0.9
0.95
Lead
Polished
0.35
0.05-0.2
0.05-0.2
Rough
0.65
0.6
0.5
Oxidized
0.3-0.7
0.3-0.7
Magnesium
0.3-0.8
0.05-0.3
0.05-0.2
Mercury
0.05-0.15
0.05-0.15
Molybdenum
Oxidized
0.5-0.9
0.4-0.9
0.4-0.9
Unoxidized
0.25-0.35
0.1-0.35
0.1-0.3
Monel (Ni-Cu)
0.3
0.2-0.6
0.2-0.6
Oxidized
Nickel
Oxidized
0.8-0.9
0.4-0.7
0.4-0.7
Electrolytic
0.2-0.4
0.1-0.3
0.1-0.2
Platinum
Black
0.95
0.95