RayTek MI Miniature Infrared Sensor operating instructions Metals

Appendix

		METALS
Material		Emissivity
	3.9 µm	5 µm	8 – 14 µm
Aluminum
Unoxidized	0.02-0.2	0.02-0.2	0.02-0.1
Oxidized	0.2-0.4	0.2-0.4	0.2-0.4
Alloy A3003, Oxidized	0.4	0.4	0.3
Roughened	0.1-0.4	0.1-0.4	0.1-0.3
Polished	0.02-0.1	0.02-0.1	0.02-0.1
Brass
Polished	0.01-0.05	0.01-0.05	0.01-0.05
Burnished	0.3	0.3	0.3
Oxidized	0.5	0.5	0.5
Chromium	0.03-0.3	0.03-0.3	0.02-0.2
Copper
Polished	0.03	0.03	0.03
Roughened	0.05-0.15	0.05-0.15	0.05-0.1
Oxidized	0.5-0.8	0.5-0.8	0.4-0.8
Gold	0.01-0.1	0.01-0.1	0.01-0.1
Haynes
Alloy	0.3-0.8	0.3-0.8	0.3-0.8
Inconel
Oxidized	0.6-0.9	0.6-0.9	0.7-0.95
Sandblasted	0.3-0.6	0.3-0.6	0.3-0.6
Electropolished	0.15	0.15	0.15
Iron
Oxidized	0.6-0.9	0.6-0.9	0.5-0.9
Unoxidized	0.05-0.25	0.05-0.25	0.05-0.2
Rusted	0.5-0.8	0.5-0.8	0.5-0.7
Molten	—	—	—
Iron, Cast
Oxidized	0.65-0.95	0.65-0.95	0.6-0.95
Unoxidized	0.25	0.25	0.2
Molten	0.2-0.3	0.2-0.3	0.2-0.3
Iron, Wrought
Dull	0.9	0.9	0.9
Lead

84 MI