Datasheet
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 
Wolfram 
- 
200°C 
600°C ... 1000°C 
0.05 
0.1 ... 0.16 
Heating wire 
3300°C 
0.39 
Zinc 
at 400°C oxidized 
400°C 
0.11 
oxidized surface 
1000°C ... 1200°C 
0.50 ... 0.60 
Polished 
200°C ... 300°C 
0.04 ... 0.05 
sheet 
50°C 
0.20 
Zirconium 
Zirconium oxide, 
Powder 
normal temperature 
0.16 ... 0.20 
Zirconium silicate, 
Powder 
normal temperature 
0.36 ... 0.42 
-37- 










