Gramercy Works Report of Investigation

APPENDIX R

Thickness Measurements of Failed Vessels



 

The following chart indicates the average measured values.
Vessel

Component

Original
Thickness
(inches)

Post-Failure
Thickness
(inches)
Flash Tank 6

hemi-head

0.544

0.515
Flash Tank 7

hemi-head

0.3125

0.2734
 

upper ring

0.527

0.47
 

lower ring

0.571

0.5
 

bottom cone

0.642

0.56
Flash Tank 8

hemi-head

0.318

0.27
 

upper ring

0.625

0.5625
 

lower ring

0.659

0.57
 

bottom cone
upper

0.75

0.703
 

bottom cone
lower

0.75

0.25
.125 (local area)
Flash Tank 9

hemi-head

0.318

0.27
 

upper ring

0.625

0.563
Blow-Off Tank

hemi-head

0.25

0.21
 

upper ring

0.25

0.21
 

lower ring

0.25

0.22
 

bottom cone

0.25

0.19