Please refer to API-571 ; 4.4.6 Fuel Ash Corrosion.
4.4.6.5 Appearance or Morphology of Damage.
Is the Alligator-Hide morphology of superheaters and reheaters indicative of,
Oil Ash Corrosion or, Coal Ash Corrosion ?
The text and the caption of Fig. 4-71 show conflicts.
Please help to resolve the discrepancy.
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Background :
4.4.6.5.c Infers oil ash corrosion of superheaters and reheaters.
4.4.6.5.d Infers that coal ash corrosion is no Alligator-Hide morphology.
Fig. 4-71 shows Alligator-Hide morphology of coal ash corrosion.
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Re : API-571 Fuel Ash Corrosion .... Alligator-Hide
