Steel
sheet, rolled
rustless, rolled
rustless, sand-
blasted
Cast Iron
poured
liquid
at 600°C oxidized 200°C ... 600°C
polished
Tin
burnish
Titanium
at 540°C oxidized
polished
Wolfram
-
Heating wire
Zinc
at 400°C oxidized 400°C
oxidized surface
Polished
sheet
Zirconium
Zirconium oxide,
Powder
Zirconium
silicate, Powder
Asbestos
tablet
Paper
Powder
slate
Coal
Heating wire
cleaned (0.9%
Asche)
50°C
700°C
700°C
50°C
1000°C
1300°C
200°C
20°C ... 50°C
200°C
500°C
1000°C
200°C
500°C
1000°C
200°C
600°C ... 1000°C
3300°C
1000°C ... 1200°C
200°C ... 300°C
50°C
normal temperature 0.16 ... 0.20
normal temperature 0.36 ... 0.42
20°C
40°C ... 400°C
normal temperature 0.40 ... 0.60
20°C
1000°C ... 1400°C
100°C ... 600°C
39
0.56
0.45
0.70
0.81
0.95
0.28
0.64 ... 0.78
0.21
0.04 ... 0.06
0.40
0.50
0.60
0.15
0.20
0.36
0.05
0.1 ... 0.16
0.39
0.11
0.50 ... 0.60
0.04 ... 0.05
0.20
0.96
0.93 ... 0.95
0.96
0.53
0.81 ... 0.79