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TABLA DE EMISIVIDAD   
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TABLA DE EMISIVIDAD

 

 

Material
Wavelength
Emit.
Aluminum: anodized  
0.770
Aluminum: anodized sheet, chromic acid process  
0.55
Aluminum: disk, roughened
0.275
Aluminum: disk, roughened
10µ
0.180
Aluminum: foil
0.09
Aluminum: foil
10µ
0.04
Aluminum: foil, dull side, crinkled and smoothed  
0.030
Aluminum: foil, shiny side  
0.036
Aluminum: heavily weathered
2-5.6µ
.83-.94
Aluminum: highly polished plate, 98.3% pure  
0.039
Aluminum: highly polished plate, 98.3% pure  
0.057
Aluminum: oxide, flame sprayed .001" thick  
0.765
Aluminum: oxidized at 600°C  
0.11
Aluminum: oxidized at 600°C  
0.19
Aluminum: polished 
8-14µ
0.05
Aluminum: polished plate   
0.04
Aluminum: polished sheet  
0.05
Aluminum: polished and degreased   
0.027
Aluminum: rough plate   
0.055
Aluminum: rough surface
8-14µ
0.07
Aluminum: sandblasted  
0.210
Aluminum: sheet as received  
0.09
Aluminum: strongly oxidized
8-14µ
0.25
Aluminum: vacuum deposited  
0.04
Brass: highly polished  
0.03
Brass: dull, tarnished
8-14µ
0.22
Brass: rubbed with 80-grit emery   
0.20
Brass: oxidized  
0.61
Brass: polished
8-14µ
0.10
Bronze: polished  
0.10
Bronze: porous, rough
8-14µ
0.55
Chromium: polished
8-14µ
0.10
Copper: commercial., burnished
8-14µ
0.07
Copper: elecrolytic, polished
8-14µ
0.02
Copper: polished  
0.05
Copper: polished
0.031
Copper: polished
10µ
0.016
Copper: polished, annealed
10µ
0.008
Copper: oxidized
8-14µ
0.65
Copper: oxidized, heavily  
0.78
Copper: oxidized to black
8-14µ
0.88
Gold: polished
8-14µ
0.02
Gold: highly polished  
0.02
Gold: plated on stainless steel and polished  
0.028
Iron, cast, casing
8-14µ
0.81
Iron: cast, polished
8-14µ
0.21
Iron: cast, oxidized  
0.64
Iron: hot rolled
8-14µ
0.77
Iron: oxidized
8-14µ
0.74
Iron: sheet, galvanized, burnished
8-14µ
0.23
Iron: sheet, galvanized, oxidized
8-14µ
0.28
Iron: sheet, heavily rusted  
0.69
Iron: shiny, etched
8-14µ
0.16
Iron: wrought, polished
8-14µ
0.28
Lead: gray
8-14µ
0.28
Lead: oxidized
8-14µ
0.63
Lead: red, powder
8-14µ
0.93
Lead: shiny
8-14µ
0.08
Magnesium: polished  
0.07
Mercury: pure
8-14µ
0.10
Nickel: electroplated, polished  
0.05
Nickel: electroplated, no polish  
0.11
Nickel: on cast-iron
8-14µ
0.05
Nickel: oxidized  
0.37
Nickel: pure, polished
8-14µ
0.05
Platinum: pure, polished
8-14µ
0.08
Silver: polished  
0.03
Stainless steel: type 18-8,buffed  
0.16
Stainless steel: type 18-8, oxidized at 800°C  
0.85
Stainless steel: type 18-8, sandblasted  
0.440
Steel: galvanized
8-14µ
0.28
Steel: polished  
0.07
Steel: oxidized  
0.79
Steel: oxidized strongly
8-14µ
0.88
Steel: rolled freshly
8-14µ
0.24
Steel: rough surface
8-14µ
0.96
Steel: rusty, red
8-14µ
0.69
Steel: sheet, nickel plated
8-14µ
0.11
Steel: sheet, rolled
8-14µ
0.56
Tin: burnished
8-14µ
0.05
Tim: commercial tin-plated sheet iron  
0.07
Tungsten
8-14µ
0.05

 
Material
Wavelength
Emit.
Asbestos: board  
0.96
Asbestos: fabric  
0.78
Asbestos: paper  
0.93
Asbestos: slate  
0.96
Brick: alumina
2-5.6µ
0.68
Brick: common
2-5.6µ
.81-.86
Brick: common, red  
0.93
Brick: facing, red
2-5.9µ
0.92
Brick: facing, yellow
2-5.6µ
0.72
Brick: fireclay  
0.85
Brick: fireclay  
0.75
Brick: fireclay  
0.59
Brick: masonry
0.94
Brick: red  
0.90
Brick: waterproof
2-5.6µ
0.87
Carbon: candle soot  
0.95
Carbon: graphite, filed surface  
0.98
Carbon: purified
8-14µ
0.80
Cement:
8-14µ
0.54
Charcoal: powder
8-14µ
0.96
Chipboard: untreated
2-5.6µ
0.90
Clay: fired 
8-14µ
0.91
Concrete  
0.92
Concrete: dry
0.95
Concrete: rough
2-5.6µ
.92-.97
Enamel: laquer
8-14µ
0.90
Fabric: Hessian, green  
0.88
Fabric: Hessian, uncolored
2-5.6µ
0.87
Fiberglass  
0.750
Fiber board: porous, untreated
2-5.6µ
0.85
Fiber board: hard, untreated
2-5.6µ
0.85
Filler: white
2-5.6µ
0.88
Firebrick
2-5.6µ
0.68
Formica
6.5-20µ
0.937
Glass
8-14µ
0.92
Glass: chemical ware (partly transparent)
6.5-20µ
0.97
Glass: frosted
8-14µ
0.96
Glass: frosted  
0.70
Glass: frosted  
0.67
Glass: polished plate  
0.94
Granite: natural surface
0.96
Graphite: powder
8-14µ
0.97
Gravel
6.5-20µ
0.28
Gypsum
8-14µ
.085
Hardwood: across grain
2-5.6µ
0.82
Hardwood: along grain
2-5.6µ
.68-.73
Ice
8-14µ
0.97
Iron: heavily rusted
2-5.6µ
.91-.96
Lacquer: bakelite
8-14µ
0.93
Lacquer: dull black
8-14µ
0.97
Lacquer: white
8-14µ
0.87q
Lacquer: white  
0.92
Lacquer: matte black  
0.97
Lacquer: shiny, black, on metal  
0.87
Lampblack
8-14µ
0.96
Limestone: natural surface
0.96
Mortar
2-5.6µ
0.87
Mortar: dry
0.94
Oil, lubricating (thin film on nickel base)    
Nickel base alone
 
0.05
Film thickness = 0.001
 
0.27
Film thickness = 0.002
 
0.46
Film thickness = 0.005
 
0.72
Thick coating
 
0.82
P.V.C.
2-5.6µ
.91-.93
Paint: 3M , black velvet coating 9560 series optical black
@1.00
Paint: 3M , black velvet coating 9560 series optical black 
10µ
@1.00
Paint: Acme, quality spray enamel, #801 brilliant black
.0959
Paint: Acme, quality spray enamel, #801 brilliant black
10µ
0.945
Paint: Aquadag, 4 coats on copper aluminum  
0.490
Paint: aluminum   
0.450
Paint: Broma, alkyd enamel #113 light blue
0.95
Paint: Broma, alkyd enamel #113 light blue
10µ
0.960
Paint: Broma, alkyd enamel #102, gold leaf
0.98
Paint: Broma, alkyd enamel #102, gold leaf 
10µ
0.98
Paint: cadmium yellow  
0.33
Paint: chrome green   
0.70
Paint: Chromatone stabilized silver finish (Alumatone) 
0.26
Paint: Chromatone stabilized silver finish (Alumatone)
10µ
0.305
Paint: cobalt blue     
Paint: Dupont Duco #71 wrought iron black
0.982
Paint: Dupont Duco #71 wrought iron black
10µ
0.897
Paint: Dutch Boy, 46H47, National lead high heat black 
10µ
0.90
Paint: Krylon, flat black 
0.95
Paint: Krylon, flat black 
10µ
0.956
Paint: Krylon, flat white #1502
0.992
Paint: Kylon, flat white #1502
10µ
0.989
Paint: Krylon, ultra flat black 
0.97
Paint: Microbond, 4 coats on magnesium  
0.844
Paint, oil: average of 16 colors  
0.94
Paint: oil, black, flat 
2-5.6µ
0.94
Paint: oil, black, gloss 
2-5.6µ
0.92
Paint: oil, gray, flat 
2-5.6µ
0.97
Paint: oil, gray, gloss 
2-5.6µ
0.94
Paint: oil, various colors
8-14µ
0.94
Paint: plastic, black 
2-5.6µ
0.95
Paint: plastic, white 
2-5.6µ
0.84
Paint: TiO2, gray  
0.870
Paint: TiO2, white  
0.940
Paper: black   
0.90
Paper: black, dull  
0.94
Paper: black, shiny
8-14µ
0.90
Paper: cardboard box
0.81
Paper: green  
0.85
Paper: red   
0.76
Paper: white
2-5.6µ
0.68
Paper: white
8-14µ
0.90
Paper: white bond  
0.93
Paper: yellow  
0.72
Paper: tar
8-14µ
0.92
Pipes: glazed
2-5.6µ
0.83
Plaster
2-5.6µ
.86-.90
Plaster: rough coat  
0.91
Plasterboard: untreated
2-5.6µ
0.90
Plastic: acrylic, clear
0.94
Plastic: black
2-5.6µ
0.95
Plastic: white 
2-5.6µ
0.84
Plastic paper: red
2-5.6µ
0.94
Plastic paper: white
2-5.6µ
0.84
Plexiglass: Perpex
2-5.6µ
0.86
Plywood
2-5.6µ
.83-.98
Plywood: commercial, smooth finish, dry
0.82
Plywood: untreated
2-5.6µ
0.83
Polyproplene
2-5.6µ
0.97
Porcelain: glazed
8-14µ
0.92
Quartz
8-14µ
0.93
Redwood: wrought, untreated
2-5.6µ
0.83
Redwood: unwrought, untreated
2-5.6µ
0.84
Rendering: gray
2-5.6µ
0.92
Rokide A  
0.770
Rubber
8-14µ
0.95
Rubber: stopper, black
0.97
Sand  
0.90
Shellac: black, dull  
0.91
Shellac: black, shiny, on tin plate  
0.82
Shingles: asphalt, sm, ceramic coated    
Skin, human  
0.98
Snow
8-14µ
0.80
Soil: dry  
0.92
Soil: frozen
6.5-20µ
0.93
Soil: saturated with water  
0.95
Styrofoam: insulation
0.60
Tape: electrical, insulating, black
0.97
Tape: masking
0.92
Tile: floor, asbestos
0.94
Tile: glazed
2-5.6µ
0.94
Varnish: flat 
2-5.6µ
0.93
Wallpaper: slight pattern, light gray
2-5.6µ
0.85
Wallpaper: slight pattern, red
2-5.6µ
0.90
Water:
8-14µ
0.98
Water: distilled  
0.98
Water: ice, smooth   
0.96
Water: frost crystals  
0.98
Water: snow  
0.85
Wood: oak, planed  
0.90
Wood: paneling, light finish  
0.87
Wood: planed
8-14µ
0.85
Wood: spruce, polished, dray
0.86

 
Material
Emissivity
Wavelength
Silver plated Cu bus bar.
0.30
3.4-5 µm
Stainless Steel
0.59
3.4-5 µm
Stainless Plate
0.34
3.4-5 µm
Stainless Steel Bolt - Shiny
0.32
3.4-5 µm
UHMW (green plastic)
0.87
3.4-5 µm
Plastic insulation on cables
0.95
3.4-5 µm
Black Iron Pipe
0.95
3.4-5 µm
Tarnished Mild Steel Plate
0.70
3.4-5 µm
Galvanized Pipe
0.46
3.4-5 µm
Spray Bar Flat Black Paint
0.92
3.4-5 µm
Shiny Copper
0.24
3.4-5 µm
Copper - oxidized, slightly dirty
0.50
3.4-5 µm
Copper - Xformer plate, slightly oxidized
0.22
3.4-5 µm
Copper - Xformer plate, failed, pitted from welder
0.32
3.4-5 µm
Copper - New shank
0.20
3.4-5 µm
Copper - Slightly oxidized patina
<0.1
3.4-5 µm
Cu - Heavily oxidized
0.64
3.4-5 µm
Heavily oxidized copper
0.69
3.4-5 µm
Wood - varnished
0.93
3.4-5 µm
White paint
0.77
3.4-5 µm
Al - Slightly oxidized, slightly greasy
0.37
3.4-5 µm
Al - splice
0.23
3.4-5 µm
Al - Weathered and pitted
0.58
3.4-5 µm
Fuse - Shiny end cap, new
0.25
3.4-5 µm
Fuse - Body, new, yellow
0.78
3.4-5 µm
Gypsum Wall Board
0.67
3.4-5 µm

 

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