|
Temperature
|
Weight Gain*, mg./cm2
|
Shape of Rate Curve
|
|
°F
|
°C
|
100 h
|
1000 h
|
-
|
|
1200
|
649
|
0.00
|
0.00
|
Cubic or Logarithmic
|
|
1600
|
871
|
0.25
|
0.67**
|
Cubic
|
|
1800
|
982
|
0.48
|
1.5**
|
Parabolic
|
|
1900
|
1038
|
0.52
|
2.0**
|
Parabolic
|
|
2000
|
1093
|
2.70
|
28.2**
|
Linear
|
3.7mg./cm2=0.001 inch of oxidation
** Extrapolated from data obtained after 170 hours at temperature