Product Manual

Emissivity tables18
Table 18.1 T: Total spectrum; SW: 2–5 µm; LW: 8–14 µm, LLW: 6.5–20 µm; 1: Material; 2: Specification;
3:Temperature in °C; 4: Spectrum; 5: Emissivity: 6:Reference (continued)
1 2 3 4 5 6
Brass polished, highly 100 T 0.03 2
Brass rubbed with 80-
grit emery
20 T 0.20 2
Brass sheet, rolled 20 T 0.06 1
Brass sheet, worked
with emery
20 T 0.2 1
Brick alumina 17
SW
0.68 5
Brick
common 17
SW
0.86–0.81 5
Brick Dinas silica,
glazed, rough
1100 T 0.85 1
Brick Dinas silica,
refractory
1000 T 0.66 1
Brick Dinas silica, un-
glazed, rough
1000 T 0.80 1
Brick firebrick
17
SW
0.68 5
Brick fireclay
1000 T 0.75 1
Brick fireclay
1200 T 0.59 1
Brick fireclay
20 T 0.85 1
Brick
masonry 35
SW
0.94 7
Brick
masonry,
plastered
20 T 0.94 1
Brick red, common 20 T 0.93 2
Brick red, rough 20 T 0.88–0.93 1
Brick refractory,
corundum
1000 T 0.46 1
Brick refractory,
magnesite
1000–1300 T 0.38 1
Brick refractory,
strongly radiating
500–1000 T 0.8–0.9 1
Brick refractory, weakly
radiating
500–1000 T 0.65–0.75 1
Brick
silica, 95% SiO
2
1230 T 0.66 1
Brick sillimanite, 33%
SiO
2
, 64% Al
2
O
3
1500 T 0.29 1
Brick waterproof
17
SW
0.87 5
Bronze phosphor bronze 70
SW
0.08 9
Bronze phosphor bronze 70 LW 0.06 9
Bronze polished 50 T 0.1 1
Bronze porous, rough 50–150 T 0.55 1
Bronze powder T 0.76–0.80 1
Carbon candle soot 20 T 0.95 2
Carbon charcoal powder T 0.96 1
Carbon
graphite powder T 0.97 1
Carbon graphite, filed
surface
20 T 0.98 2
Carbon
lampblack 20–400 T 0.95–0.97 1
Chipboard untreated 20 SW
0.90 6
#T559828; r. AC/ 9610/10386; en-US
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