Appendix
Polished 0.05-0.2
0.05-0.2
0.05-0.1
Rough 0.4
0.4
0.4
Oxidized 0.2-0.7
0.2-0.7
0.2-0.6
Magnesium 0.03-0.15
0.03-0.15
0.02-0.1
Mercury 0.05-0.15
0.05-0.15
0.05-0.15
Molybdenum
Oxidized 0.3-0.7
0.3-0.7
0.2-0.6
Unoxidized 0.1-0.15
0.1-0.15
0.1
Monel (Ni-Cu)
0.1-0.5
0.1-0.5
0.1-0.14
Nickel
Oxidized 0.3-0.6
0.3-0.6
0.2-0.5
Electrolytic 0.1-0.15
0.1-0.15
0.05-0.15
Platinum
Black 0.9
0.9
0.9
Silver 0.02
0.02
0.02
Steel
Cold-Rolled 0.8-0.9
0.8-0.9
0.7-0.9
Ground Sheet
0.5-0.7
0.5-0.7
0.4-0.6
Polished Sheet
0.1
0.1
0.1
Molten 0.1-0.2
0.1-0.2
—
Oxidized 0.7-0.9
0.7-0.9
0.7-0.9
Stainless 0.15-0.8
0.15-0.8 0.1-0.8
Tin (Unoxidized)
0.05
0.05
0.05
Titanium
Polished 0.1-0.3
0.1-0.3
0.05-0.2
Oxidized 0.5-0.7
0.5-0.7
0.5-0.6
Tungsten 0.05-0.5
0.05-0.5
0.03
Polished 0.05-0.25
0.05-0.25
0.03-0.1
Zinc
Oxidized 0.1
0.1
0.1
Polished 0.03
0.03
0.02
Tab.
10:
Typical
Emissivity
Values
for
Metals
MID
83
