Ti20 – Fluke Ti20 User Manual
Page 62
Ti20
Users Manual
C-2
Table C-1. Emissivity Values for Metals
Emissivity
Material
1.0 µm
1.6 µm
8 to 14 µm
Aluminum
Unoxidized 0.1-0.2 0.02-0.2 n.r.
Oxidized 0.4
0.4
0.2-0.4
Alloy A3003,
Oxidized
n.r.
0.4
0.3
Roughened 0.2-0.8
0.2-0.6 0.1-0.3
Polished 0.1-0.2
0.02-0.1 n.r.
Brass
Polished 0.8-0.95
0.01-0.05 n.r.
Burnished n.r.
n.r.
0.3
Oxidized 0.6
0.6
0.5
Chromium 0.4
0.4
n.r.
Copper
Polished n.r.
0.03
n.r.
Roughened n.r.
0.05-0.2
n.r
Oxidized 0.2-0.8
.2-0.9
0.4-0.8
Electrical Terminal Blocks
n.r.
n.r.
0.6
Gold 0.3
0.01-0.1
n.r.
Haynes Alloy
0.5-0.9 0.6-0.9 0.3-0.8
Inconel
Oxidized 0.4-0.9
0.6-0.9 0.7-0.95
Sandblasted 0.3-0.4
0.3-0.6 0.3-0.6
Electropolished 0.2-0.5 0.25 0.15
Iron
Oxidized 0.4-0.8
0.5-0.9 0.5-0.9
Unoxidized 0.35
0.1-0.3 n.r.
Rusted n.r.
0.6-0.9 0.5-0.7
Molten 0.35
0.4-0.6
n.r.