Material |
Emissivity |
Asbestos |
0.95 |
Asphalt |
0.95 |
Basalt |
0.7 |
Brick |
|
Red, Rough |
0.93 |
Gault Cream |
0.26 to 0.30 |
Fire Clay |
0.75 |
Lime Clay |
0.43 |
Fire Brick |
0.75 to 0.80 |
Magnesite, Refractory |
0.38 |
Gray Brick |
0.75 |
Silica, Glazed |
0.88 |
Silica, Unglazed |
0.80 |
Sandlime |
0.59 to 0.63 |
Carborundum |
0.92 |
Carbon |
|
Unoxidized |
0.8 to 0.9 |
Graphite |
0.7 to 0.8 |
|
Material |
Emissivity |
Ceramic |
0.95 |
Clay |
0.95 |
Concrete |
0.95 |
Cloth |
0.95 |
Glass |
0.85 |
Gravel |
0.95 |
Gypsum |
0.8 to 0.95 |
Ice |
0.98 |
Limestone |
0.98 |
Paint (non-Al.) |
0.9 to 0.95 |
Paper (any color) |
0.95 |
Plastic |
0.95 |
Rubber |
0.95 |
Sand |
0.9 |
Snow |
0.9 |
Soil |
0.9 to 0.98 |
Water |
0.93 |
Wood |
0.9 to 0.95 |
|