Fluke Ti20 User Manual page 63

Material
Iron, Cast
Oxidized
Unoxidized
Molten
Iron, Wrought
Dull
Lead
Polished
Rough
Oxidized
Magnesium
Mercury
Molybdenum
Oxidized
Unoxidized
Monel (Ni-Cu)
Nickel
Oxidized
Electrolytic
Platinum
Black
Silver
Steel
Cold-Rolled
Ground Sheet
Polished Sheet
Molten
Oxidized
Stainless
Table C-1. Emissivity Values for Metals (cont)
1.0 µm
0.7-0.9
0.35
0.35
0.9
0.35
0.65
n.r.
0.3-0.8
n.r.
0.5-0.9
0.25-0.35
0.3
0.8-0.9
0.2-0.4
n.r.
n.r.
0.8-0.9
n.r.
0.35
0.35
0.8-0.9
0.35
Typical Emissivity Values
Emissivity
1.6 µm 8 to14 µm
0.7-0.9 0.6-0.95
0.3
0.3-0.4 0.2-0.3
0.9
0.05-0.2
0.6
0.3-0.7 0.2-0.6
0.05-0.3
0.05-0.15
0.4-0.9 0.2-0.6
0.1-0.35
0.2-0.6 0.1-0.14
0.4-0.7 0.2-0.5
0.1-0.3
0.95
0.02
0.8-0.9 0.7-0.9
n.r. 0.4-0.6
0.25
0.25-0.4
0.8-0.9 0.7-0.9
0.2-0.9 0.1-0.8
Appendices
C
0.2
0.9
n.r.
0.4
n.r.
n.r.
0.1
n.r.
0.9
n.r.
0.1
n.r.
C-3