Omega PX409-USB - Section 5 - Emissivity Table (For IR-USB Models)

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Section 5 - Emissivity Table (For IR-USB Models)
Material Emissivity (ε)
Aluminum – pure highly polished plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04 to 0.06
Aluminum – heavily oxidized ..................................... 0.20 to 0.31
Aluminum – commercial sheet ........................................... 0.09
Brass – dull plate ..................................................... 0.22
Brass – highly polished, 73.2% Cu, 26.7% Zn .............................. 0.03
Chromium – polished............................................ 0.08 to 0.36
Copper – polished .................................................... 0.05
Copper – heated at 600°C (1112°F) ..................................... 0.57
Gold – pure, highly polished or liquid............................... 0.02 to 0.04
Iron and steel (excluding stainless) – polished iron ..................... 0.14 to 0.38
Iron and steel (excluding stainless) – polished cast iron ....................... 0.21
Iron and steel (excluding stainless) – polished wrought iron .................... 0.28
Iron and steel (excluding stainless) – oxidized dull wrought iron ................ 0.94
Iron and steel (excluding stainless) – rusted iron plate ........................ 0.69
Iron and steel (excluding stainless) – polished steel .......................... 0.07
Iron and steel (excluding stainless) – polished steel oxidized at
600°C (1112°F) ........................... 0.79
Iron and steel (excluding stainless) – rolled sheet steel ........................ 0.66
Iron and steel (excluding stainless) – rough steel plate .................. 0.94 to 0.97
Lead – gray and oxidized .............................................. 0.28
Mercury ..................................................... 0.09 to 0.12
Molybdenum filament ........................................... 0.10 to 0.20
Nickel – polished..................................................... 0.07
Nickel – oxidized at 649 to 1254°C (1200°F to 2290°F) ............... 0.59 to 0.86
Platinum – pure polished plate .................................... 0.05 to 0.10
Platinum – wire ............................................... 0.07 to 0.18
Silver – pure and polished........................................ 0.02 to 0.03
Stainless steel – polished ............................................... 0.07
Stainless steel – Type 301 at 232 to 942°C (450°F to 1725°F) .......... 0.54 to 0.63
Tin – bright.......................................................... 0.06
Tungsten – filament ................................................... 0.39
Zinc – polished commercial pure......................................... 0.05
Zinc – galvanized sheet................................................ 0.23
METALS
Emissivity Table
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