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Appendix | Emissivity Table Metals

thermoIMAGER TIM

A 4 Emissivity Table Metals

Please note that these are only approximate values, which were taken from various sources.

Material Typical emissivity

Aluminum Non oxidized 0.02 - 0.1

Polished 0.02 - 0.1

Roughened 0.1 - 0.3

Oxidized 0.2 - 0.4

Brass Polished 0.01 - .05

Roughened 0.3

Oxidized 0.5

Copper Polished 0.03

Roughened 0.05 - 0.1

Oxidized 0.4 - 0.8

Chrome 0.02 - 0.2

Gold 0.01 - 0.1

Haynes Alloy 0.3 - 0.8

Inconel Electro

polished

0.15

Sandblast 0.3 - 0.6

Oxidized 0.7 - 0.95

Material Typical emissivity

Iron Non oxidized 0.05 - 0.2

Rusted 0.5 -0.7

Oxidized 0.5 - 0.9

Forget, blunt 0.9

Iron, casted Non oxidized 0.2

Oxidized 0.6 - 0.95

Lead Polished 0.05 - 0.1

Roughened 0.4

Oxidized 0.2 - 0.6

Magnesium 0.02 - 0.1

Mercury 0.05 - 0.15

Molybdenum Non oxidized 0.1

Oxidized 0.2 - 0.6

Monel (Ni-CU) 0.1 - 0.14

Nickel Electrolytic 0.05 - 0.15

Oxidized 0.2 - 0.5

Platinum Black 0.9

Silver 0.02

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 63 64

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