SDS HotFind-D - Page 45

HotFind-D Infrared Camera Operation Manual
42
Material Temperature (°C)
Emissivity
approximation
Iron
Polished cast iron
200
0.21
Processed cast iron
20
0.44
Polished tempered
iron
40～250
0.28
Polished steel ingot
770～1040 0.52～0.56
Raw welded steel
945～1100 0.52～0.61
Surface ferric oxide
20
0.69
Completely rusty
surface
22
0.66
Rolled iron plate
100
0.74
Oxidized steel
198～600 0.64～0.78
Cast iron (Oxidizing at
600°C)
198～600
0.79
Steel (Oxidizing at
600°C )
125～520 0.78～0.82
Electrolytic ferric
oxide
500～1200 0.85～0.89
Iron plate
925～1120 0.87～0.95
Cast iron, heavy ferric
oxide
25
0.80
Tempered iron, ferric
oxide
40～250
0.95
Melting surface 22 0.94
Melting cast iron
1300～1400
0.29
Melting mild steel
1600～1800
0.28
Liquid steel
1500～1650 0.42～0.53
Pure liquid iron
1515～1680 0.42～0.45