Use and Care Manual

16
Appendix: Emissivity Chart
Emissivity is a term used to describe the energy-emitting characteristics
ofmaterials.Most(90%oftypicalapplications)organicmaterialsand
painted or oxidized surfaces have an emissivity of 0.95.
Inaccurate readings will result from measuring shiny or polished metal
surfaces. To compensate, cover the surface to be measured with masking
tapeoratblackpaint.Allowtimeforthetapetoreachthesame
temperatureasthematerialunderneathit.Measurethetemperatureofthe
tape or painted surface.
Measured Surfaces Emissivity
Metal
Aluminum: Oxidization 0.2-0.4
A3003 Alloy: Oxidization, Rough 0.3, 0.1-0.3
Brass: Burnishing, Oxidization 0.3, 0.5
Copper: Oxidization,
Electric Terminal Board
0.4-0.8, 0.6
Hastelloy: Alloy 0.3-0.8
Inconel: Oxidization,
Sand-Blasting, Electro Burnishing
0.7-0.95, 0.3-0.6, 0.15
Iron: Oxidization, Rusting 0.5-0.9, 0.5-0.7
Iron(Casting):Oxidization,
Non-Oxidization,Casting
0.6-0.95, 0.2, 0.2-0.3
Iron(Forging):Passivation 0.9
Lead:Rough,Oxidization 0.4, 0.2-0.6
Molybdenum:Oxidization 0.2-0.6
Nickel:Oxidization 0.2-0.5
Platinum: Black 0.9
continued...
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