Chrome
Polished
50°C
500°C ... 1000°C
0.1
0.28 ... 0.38
Copper
burnished
20°C
0.07
elektrolytic polished 80°C
0.018
elektrolytic
powdered
normal Temperature
0.76
molten
1100°C ... 1300°C
0.13 ... 0.15
oxidized
50°C
0.6 ... 0.7
oxidized and black
5°C
0.88
Iron
With red rust
20°C
0.61 ... 0.85
elektrolytic polished 175°C ... 225°C
0.05 ... 0.06
Wrought with
sandpaper
20°C
0.24
oxidized
100°C
125°C ... 525°C
0.74
0.78 ... 0.82
Hot-rolled
20°C
0.77
Hot-rolled
130°C
0.6
Laquer
Bakelite
80°C
0.93
black, matt
40°C ... 100°C
0.96 ... 0.98
black, high-
glossed, sprayed
onto iron
20°C
0.87
Heat-resistant
100°C
0.92
white
40°C ... 100°C
0.80 ... 0.95
Lamp black
-
20°C ... 400°C
0.95 ... 0.97
Application to solid
surfaces
50°C ... 1000°C
0.96
With water glass
20°C ... 200°C
0.96
Paper
black
normal Temperature
0.90
black, matt
dto.
0.94
green
dto.
0.85
Red
dto.
0.76
White
20°C
0.7 ... 0.9
yellow
normal Temperature
0.72
Glass
-
20°C ... 100°C
250°C ... 1000°C
1100°C ... 1500°C
0.94 ... 0.91
0.87 ... 0.72
0.7 ... 0.67
Matted
20°C
0.96
-53-
