Table 13: Typical Emissivity Values (Metals); Table 14: Typical Emissivity Values (Non-Metals) - Fluke Endurance Series User Manual

Endurance® Series
Users Manual
Emissivity at 1 µm for Metals
Material
Aluminum
unoxidized
oxidized
roughened
polished
Brass
polished
Burnished
Chromium
Copper
polished
roughened
oxidized
Gold
Haynes
Alloy
Inconel
oxidized
sandblasted
electropolished
Iron
oxidized
unoxidized
molten

Table 14: Typical Emissivity Values (Non-Metals)

90

Table 13: Typical Emissivity Values (Metals)

Emissivity
0.1-0.2
0.4
0.2-0.8
0.1-0.2
0.1-0.3
0.6
0.4
0.05
0.05-0.2
0.2-0.8
0.3
0.5-0.9
0.4-0.9
0.3-0.4
0.2-0.5
0.4-0.8
0.35
0.35
Emissivity at 1 µm for Non-Metals
Material Emissivity
Asbestos
Ceramic
Concrete
Carbon
unoxidized
graphite
Emissivity at 1 µm for Metals
Material
Iron, cast
oxidized
unoxidized
molten
Magnesium
Molybdenum
oxidized
Monel (Ni-Cu)
Nickel
unoxidized
Oxidized
electrolytic
Silver
Steel
cold rolled
polished sheet
molten
oxidized
stainless
Tin (unoxidized)
Titanium
polished
Zinc
oxidized
polished
0.9
0.4
0.65
0.8-0.95
0.8-0.9
Emissivity
0.7-0.9
0.35
0.35
0.3-0.8
0.5-0.9
0.25-0.35
0.3
0.8-0.9
0.2-0.4
0.04
0.8-0.9
0.35
0.35
0.8-0.9
0.35
0.25
0.5-0.75
0.6
0.5