Technical data >
Technical data of solids, liquids and gases > Examples of emission factors of flat surfaces
|
Materials |
a |
| Black body |
1 |
| Polished stainless steel |
0.27 |
| Polished aluminium |
0.05 |
| Unpolished brass |
0.21 |
| Tempered steel, slightly oxidized |
0.70 |
| Copper with slightly polished surface |
0.16 |
| Oxidized copper |
0.36 |
| Highly oxidized steel |
0.82 |
| Highly oxidized cast iron |
0.92 |
| Snow white enamel lacquer |
0.92 |
| Glossy black lacquer |
0.89 |
| Steel plate with thick glossy oxide layer
|
0.83 |
|
