B -
23
Infrared Camera – Operating Manual
EN
Material
Temperature
(°C)
Emissivity
(approx.)
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
(oxidised at 600°C)
198 ~ 600
0.79
Steel
(oxidised 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 lead
1515 ~ 1680
0.42 ~ 0.45
Silver
Polished Silver
100
0.05
Material
Temperature
(°C)
Emissivity
(approx.)
Nickel
Nickel-chrome
(heat-resistant)
50 ~ 1000
0.65 ~ 0.79
Nickel-chrome alloy
50 ~ 1040
0.64 ~ 0.76
Nickel-chrome alloy
(heat-resistant)
50 ~ 500
0.95 ~ 0.98
Nickel-silver alloy
100
0.14
Lead
Pure lead
(non-oxidised)
125 ~ 225
0.06 ~ 0.08
Stainless steel
18 - 8
25
0.16
304 (8Cr, 18Ni)
215 ~ 490
0.44 ~ 0.36
310 (25Cr, 20Ni)
215 ~ 520
0.90 ~ 0.97
Tin
Commercial tin plate
100
0.07
Strong oxidization
0 ~ 200
0.60
Zinc
Oxidizing at 400°C
400
0.01
Galvanised shining
iron plate
28
0.23
Ash zinc oxide
25
0.28
Magnesium
Magnesia
275 ~ 825
0.55 ~ 0.20
Hg
0 ~ 100
0.09 ~ 0.12
Nickel
Electroplate polishing
25
0.05
Electroplate
20
0.01
Nickel wire
185 ~ 1010
0.09 ~ 0.19
Nickel alloy (oxide)
198 ~ 600
0.37 ~ 0.48
11. eMIssIvIty taBLe