8
Surface Material
Emissivity
Surface
Material
Emissivity
Surface
Material
Emissivity
Black lacquer on iron
0 .875
Iron, rough ingot
0 .87 - 0 .95
Rubber, glossy
0 .94
Black Silicone Paint
0 .93
Lead un-oxidized
0 .057 -
0 .075
Rubber, natural
hard
0 .91
Black Epoxy Paint
0 .89
Lead Oxidized
0 .43
Salt
0 .34
Black Enamel Paint
0 .8
Limestone
0 .90 - 0 .93
Sand
0 .76
Brass Dull Plate
0 .22
Magnesite
0 .38
Sandstone
0 .59
Brass Polished
0 .03
Magnesium
Polished
0 .07 - 0 .13
Silica
0 .79
Brick, red rough
0 .93
Marble White
0 .95
Silicon Carbide
0 .83 - 0 .96
Brick, fireclay
0 .75
Masonry Plas-
tered
0 .93
Silver Polished
0 .02 - 0 .03
Carbon, not oxidized
0 .81
Mercury liquid
0 .1
Soil
0 .90 - 0 .95
Cast Iron
0 .44
Mild Steel
0 .20 - 0 .32
Steel Oxidized
0 .79
Cement
0 .54
Mortar
0 .87
Steel Polished
0 .07
Clay
0 .91
Nickel, electro-
plated
0 .03
Stainless
Steel(SS)
0 .85
Coal
0 .8
Nickel, polished
0 .072
SS, polished
0 .075
Concrete
0 .85
Nickel, oxidized
0 .59 - 0 .86
Steel Galvanized
old
0 .88
Concrete, rough
0 .94
Oak, planed
0 .89
Steel Galvanized
New
0 .23
Concrete tiles
0 .63
Oil paints, all
colors
0 .92 - 0 .96
Tile
0 .97
Cotton cloth
0 .77
Paper offset
0 .55
Tin un-oxidized
0 .04
Copper Polished
0 .023 -
0 .052
Plaster
0 .98
Water
0 .95 - 0 .963
Copper Nickel Alloy
0 .059
Pine
0 .84
Wood Beech,
planned
0 .935
Glass smooth
0 .92 - 0 .94
Plaster board
0 .91
Wood Oak,
planned
0 .885
Glass, Pyrex
0 .85 - 0 .95
Porcelain, glazed
0 .92
Wood, Pine
0 .95
