Emissivity Of Common Materials (For Reference Only) - Omega Ti-400 User Manual

Appendix A

Emissivity of common materials (for reference only)

Materials
Aluminum
Brass
Copper
Iron
Cast iron
Wrought iron
Nickel
Stainless steel
Steel
Brick
Concrete
Glass
Paint
Carbon
Paint
Paper
Sand
Wood
Water
Skin
Ceramics
Specification
Non oxidation
Oxidation
Polishing and brown
Dull
Oxidation
Severe oxidation
Oxidation
Rust
Oxidation
Non oxidation
Dull
Polishing
Oxidation
Oxidation
Oxidation under
800 ℃
Surface
Surface
Polishing and flat
White
Black
Soot
Candle smoke
Graphite rough surface
Average value of 16
colors
White
Surface
Polishing
Distilled water
Human
Fit
Crude
Temperature（ ℃ ）
100
100
20
38
100
20
100
25
200
100
25
38
200
60
200
20
20
20
100
100
25
20
20
100
20
20
20
20
32
21
21
Emissivity（ε）
0.20
0.55
0.40
0.22
0.61
0.78
0.74
0.65
0.64
0.21
0.94
0.28
0.37
0.85
0.79
0.93
0.92
0.94
0.92
0.97
0.95
0.95
0.98
0.94
0.93
0.90
0.90
0.96
0.98
0.90
0.93