Steel
Alloy (8%
Nickel, 18%
Chrome)
500°C
0.35
Galvanized
20°C
0.28
oxidized
200°C ... 600°C
0.80
strongly
oxidized
50°C
500°C
0.88
0.98
Newly-rolled
20°C
0.24
Rough, flat
surface
50°C
0.95 ... 0.98
rusty, redt
20°C
0.69
sheet
950°C ... 1100°C
0.55 ... 0.61
sheet, Nickel-
coated
20°C
0.11
sheet,
polished
750°C ... 1050°C
0.52 ... 0.56
sheet, rolled
50°C
0.56
rustless,
rolled
700°C
0.45
rustless,
sand-blasted
700°C
0.70
Cast Iron
poured
50°C
1000°C
0.81
0.95
liquid
1300°C
0.28
at 600°C
oxidized
200°C ... 600°C
0.64 ... 0.78
polished
200°C
0.21
Tin
burnish
20°C ... 50°C
0.04 ... 0.06
Titanium
at 540°C
oxidized
200°C
500°C
1000°C
0.40
0.50
0.60
polished
200°C
500°C
1000°C
0.15
0.20
0.36
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