Emissivity Tables - Ametek Land Fibroptic FG User Manual

User Guide

6.4 Emissivity Tables

Metals
Material
Aluminium
Oxidised
Chromium
Oxidised
Cobalt
Oxidised
Copper
Oxidised
Gold
Iron & Steel
Oxidised
Lead
Oxidised
Magnesium
Oxidised
Molybdenum
Oxidised
Nickel
Oxidised
Palladium
Platinum
Rhodium
Silver
Oxidised
Tin
Oxidised
Titanium
Oxidised
Tungsten
Zinc
Oxidised
Alloys
Emissivity Material
0.13 Brass
0.40 Oxidised
0.43 Chromel & Alumel
0.75 Oxidised
0.32 Constantin & Manganin
0.70 Oxidised
0.06 Inconel
0.85 Oxidised
0.05 Monel
0.35 Oxidised
0.85 Nichrome
0.35 Oxidised
0.65
0.27
Miscellaneous Materials
0.75
Material
0.33
Asbestos (Board/Paper Cloth)
0.80
Asphalt
0.35
Carbon
0.85
0.28
Cement & Concrete
0.27
Cloth
(Open weave reduces emissivity)
0.25
Glass
0.05
0.10
0.40
0.60
0.55
Miscellaneous Materials
0.80
Material
0.39
Alumina
0.50
Brick
0.60
Ceramics
Magnesite
Fibroptic Model FG Thermometer
Graphite
Soot
(all types - close weave)
3mm thick
6mm thick
12mm thick
20mm thick
Red
White refractory
Silica
Sillimanite
Emissivity
0.20
0.70
0.30
0.80
0.25
0.65
0.30
0.85
0.25
0.70
0.30
0.85
Emissivity
0.90
0.85
0.85
0.95
0.65
0.75
-
-
-
0.80
Emissivity
0.30
0.80
0.30
0.55
0.60
0.40
-
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