6
5
4
3
2
1
4
0.18
T
538
Magnesium
2
0.07
T
20
polished
Magnesium
1
0.86
T
Magnesium pow-
der
1
0.08–0.13
T
600–1000
Molybdenum
1
0.19–0.26
T
1500–2200
Molybdenum
1
0.1–0.3
T
700–2500
filament
Molybdenum
5
0.87
SW
17
Mortar
7
0.94
SW
36
dry
Mortar
10 and
11
> 0.97
LW
–60–150
Flat black
Nextel Velvet 811-
21 Black
1
0.25
T
700
rolled
Nichrome
1
0.70
T
700
sandblasted
Nichrome
1
0.65
T
50
wire, clean
Nichrome
1
0.71–0.79
T
500–1000
wire, clean
Nichrome
1
0.95–0.98
T
50–500
wire, oxidized
Nichrome
4
0.041
T
122
bright matte
Nickel
1
0.045
T
100
commercially
pure, polished
Nickel
1
0.07–0.09
T
200–400
commercially
pure, polished
Nickel
4
0.04
T
22
electrolytic
Nickel
4
0.06
T
38
electrolytic
Nickel
4
0.07
T
260
electrolytic
Nickel
4
0.10
T
538
electrolytic
Nickel
2
0.05
T
20
electroplated, pol-
ished
Nickel
4
0.045
T
22
electroplated on
iron, polished
Nickel
1
0.11–0.40
T
20
electroplated on
iron, unpolished
Nickel
Publ. No. T559733_en-US Rev. a571 – ENGLISH (EN) – November 4, 2011
93
22 – Emissivity tables
