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Appendix | Emissivity Table Non Metals
thermoMETER TIM 8 / thermoIMAGER TIM 40
Material
Typical Emissivity
Spectral response
1.0 μm
1.6 μm
5.1 μm
8 - 14 μm
Steel
Polished plate
0.35
0.25
0.1
0.1
Rustless
0.35
0.2 - 0.9
0.15 - 0.8
0.1 - 0.8
Heavy plate
0.5 - 0.7
0.4 - 0.6
Cold-rolled
0.8 - 0.9
0.8 - 0.9
0.8 - 0.9
0.7 - 0.9
Oxidized
0.8 - 0.9
0.9 - 0.9
0.7 -0.9
0.7 - 0.9
Tin
Non oxidized
0.25
0.1 - 0.3
0.05
0.05
Titanium
Polished
0.5 - 0.75
0.3 - 0.5
0.1 - 0.3
0.05 - 0.2
Oxidized
0.6 - 0.8
0.5 - 0.7
0.5 - 0.6
Wolfram
Polished
0.35 - 0.4
0.1 - 0.3
0.05 - 0.25
0.03 - 0.1
Zinc
Polished
0.5
0.05
0.03
0.02
Oxidized
0.6
0.15
0.1
0.1
