Omega OSP SERIES manual A1.2 Metals Typical Emissivity Values, 14 µm

A1.2	Metals - Typical Emissivity Values
		1.0 µm	1.6 µm	5.1 µm	8-14 µm
Aluminum
Non-Oxidized		0.1-0.2	0.02-0.2	0.02-0.2	0.02-0.1
Oxidized		0.4	0.4	0.2-0.4	0.2-0.4
Alloy A 3003
Oxidized		—	0.4	0.4	0.3
Roughened		0.2-0.8	0.2-0.6	0.1-0.4	0.1-0.3
Polished		0.1-0.2	0.02-0.1	0.02-0.1	0.02-0.1
Brass	Polished	0.8-0.95	0.01-0.05	0.01-0.05	0.01-0.05
	Burnished	—	—	0.3	0.3
Carbon	Oxidized	0.6	0.6	0.5	0.5
	Non-oxidized	0.8-0.95	0.8-0.9	0.8-0.9	0.8-0.9
	Graphite	0.8-0.9	0.8-0.9	0.7-0.9	0.7-0.8
Chromium		0.4	0.4	0.03-0.3	0.02-0.2
Copper	Polished	0.05	0.03	0.03	0-03
	Roughened	0.05-0.2	0.05-0.2	0.05-0.15	0.05-0.1
	Oxidized	0.2-0.8	0.2-0.9	0.5-0.8	0.4-0.8
Gold		0.3	0.01-0.1	0.01-0.1	0.01-0.1
Haynes Alloy		0.5-0.9	0.6-0.9	0.3-0.8	0.3-0.8
Inconel	Oxidized	0.4-0.9	0.6-0.9	0.6-0.9	0.7-0.95
	Sandblasted	0.3-0.4	0.3-0.6	0.3-0.6	0.3-0.6
Iron	Electro-polished	0.2-0.5	0.25	0.15	0.15
	Oxidized	0.4-0.8	0.5-0.9	0.6-0.9	0.5-0.9
	Non-oxidized	0.35	0.1-0.3	0.05-0.25	0.05-0.2
	Rusted	—	0.6-0.9	0.5-0.8	0.5-0.7
Iron Cast	Molten	0.35	0.4-0.6	—	—
	Oxidized	0.7-0.9	0.7-0.9	0.65-0.95	0.6-0.95
	Non-oxidized	0.35	0.3	0.25	0.2
	Molten	0.35	0.3-0.4	0.2-0.3	0.2-0.3
Iron Wrought
Lead	Dull	0.9	0.9	0.9	0.9
	Polished	0.35	0.05-0.2	0.05-0.2	0.05-0.1
	Rough	0 65	0.6	0.4	0-4
	Oxidized	—	0.3-0.7	0.2-0.6	0.2-0.6
Magnesium		0.3-0.8	0.05-0.3	0.03-0.15	0.02-0.1
Mercury		—	0.05-0.15	0.05-0.15	0.05-0.15
Molybdenum
	Oxidized	0.5-0.9	0.4-0.9	0.3-0.7	0.2-0.6
	Non-oxidized	0.25-0.35	0.1-0.3	0.1-0.15	0.1
Monel (Ni-Cu)		0.3	0.2-0.6	0.1-0.5	0.1-0.14
Nickel	Oxidized	0.8-0.9	0.4-0.7	0.3-0.6	0.2-0.5
Platinum	Electrolytic	0.2-0.4	0.1-0.3	0.1-0.15	0.05-0.15
	Black	—	0.95	0.9	0.9
Silver		0.04	0.02	0.02	0.02
Steel	Cold-Rolled	0.8-0.9	0.8-0.9	0.8-0.9	0.7-0.9
	Ground Sheet	—	—	0.5-0.7	0.4-0.6
	Polished Sheet	0.35	0.25	0.15	0.1
	Molten	0.35	0.25-0.4	0.1-0.2	—
	Oxidized	0.8-0.9	0.8-0.9	0.7-0.9	0.7-0.9
	Stainless	0.35	0.2-0.9	0.15-0.8	0.1-0.8
Tin (Non-oxidized)		0.25	0.1-0.3	0.05	0.05
Titanium	Polished	0.5-0.75	0.3-0.5	0.1-0.3	0.05-0.2
	Oxidized	—	0.6-0.8	0.5-0.7	0.5-0.6

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