RayTek MARATHON MM SERIES - Page 85

Appendix
Marathon MM Rev. D7 Jul 2017 85
METALS
Emissivity
Material
1 µm
1.6 µm
2.3 µm
3.9 µm
5 µm
7.9 µm
8 – 14 µm
Aluminum
Unoxidized
0.1-0.2
0.02-0.2
0.02-0.2
0.02-0.2
0.02-0.2
0.03-0.15
0.02-0.1
Oxidized
0.4
0.4
0.2-0.4
0.2-0.4
0.2-0.4
0.20-0.55
0.2-0.4
Alloy A3003,
Oxidized
0.4
0.4
0.4
0.4
0.3
Roughened
0.2-0.8
0.2-0.6
0.2-0.6
0.1-0.4
0.1-0.4
0.1-0.3
Polished
0.1-0.2
0.02-0.1
0.02-0.1
0.02-0.1
0.02-0.1
0.02-0.1
Brass
Polished
0.1-0.3
0.01-0.05
0.01-0.05
0.01-0.05
0.01-0.05
0.03-0.15
0.01-0.05
Burnished
0.4
0.3
0.3
0.3
Oxidized
0.6
0.6
0.6
0.5
0.5
0.5
Chromium
0.4
0.4
0.05-0.3
0.03-0.3
0.03-0.3
0.10-0.20
0.02-0.2
Oxidized
0.60-0.85
Copper
Polished
0.03
0.03
0.03
0.03
0.03-0.15
0.03
Roughened
0.05-0.2
0.05-0.2
0.05-0.15
0.05-0.15
0.05-0.1
Oxidized
0.2-0.8
0.2-0.9
0.7-0.9
0.5-0.8
0.5-0.8
0.40-0.80
0.4-0.8
Gold
0.3
0.01-0.1
0.01-0.1
0.01-0.1
0.01-0.1
0.02-0.15
0.01-0.1
Haynes
Alloy
0.5-0.9
0.6-0.9
0.6-0.9
0.3-0.8
0.3-0.8
0.3-0.8
Inconel
Oxidized
0.4-0.9
0.6-0.9
0.6-0.9
0.6-0.9
0.6-0.9
0.80-0.90
0.7-0.95
Sandblasted
0.3-0.4
0.3-0.6
0.3-0.6
0.3-0.6
0.3-0.6
0.3-0.6
polished
0.2-0.5
0.25
0.25
0.15
0.15
0.10-0.25
0.15
Iron
Oxidized
0.4-0.8
0.5-0.8
0.7-0.9
0.6-0.9
0.6-0.9
0.80-0.95
0.5-0.9
Unoxidized
0.35
0.1-0.3
0.1-0.3
0.05-0.25
0.05-0.25
0.05-0.2
Rusted
0.6-0.9
0.6-0.9
0.5-0.8
0.5-0.8
0.5-0.7
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
0.65-0.95
0.65-0.95
0.10-0.95
0.6-0.95
Unoxidized
0.35
0.3
0.1-0.3
0.25
0.25
0.10-0.15
0.2
Molten
0.35
0.3-0.4
0.3-0.4
0.2-0.3
0.2-0.3
0.2-0.3
Iron, Wrought
Dull
0.9
0.9
0.95
0.9
0.9
0.9
Lead
Polished
0.35
0.05-0.2
0.05-0.2
0.05-0.2
0.05-0.2
0.05-0.1
Rough
0.65
0.6
0.5
0.4
0.4
0.4
Oxidized
0.3-0.7
0.3-0.7
0.2-0.7
0.2-0.7
0.2-0.6
Magnesium
0.3-0.8
0.05-0.3
0.05-0.2
0.03-0.15
0.03-0.15
0.02-0.1
Mercury
0.05-0.15
0.05-0.15
0.05-0.15
0.05-0.15
0.05-0.15
Molybdenum
Oxidized
0.5-0.9
0.4-0.9
0.4-0.9
0.3-0.7
0.3-0.7
0.2-0.6
Unoxidized
0.25-0.35
0.1-0.35
0.1-0.3
0.1-0.15
0.1-0.15
0.10-0.25
0.1