Owner manual

75
Appendix
Emissivity table (continue)
Material
Temperature（°C ）
Emissivity
approximation
Lead
Pure lead (Non-
oxidization)
125～225
0.06～0.08
Mildly oxidized
25～300
0.20～0.45
Magnesium
Magnesia
275～825
0.55～0.20
Magnesia
900～1670
0.20
Hg
0～100
0.09～0.12
Nickel
Electroplate polishing
25
0.05
Electroplate
20
0.01
non-polishing
Nickel wire
185～1010
0.09～0.19
Nickel plate (oxidized)
198～600
0.37～0.48
Nickel oxide
650～1255
0.59～0.86
Nickel alloy
Nickel-chrome (heat-
resistance) alloy wire
(shining)
50～1000
0.65～0.79
Nickel-chrome alloy
50～1040
0.64～0.76
Nickel-chrome (heat
resistance)
50～500
0.95～0.98
Nickel-silver alloy
100
0.14
Silver
Polished silver
100
0.05