Critical parts & components in industry

In heavy industry such as petrochemical and power generation plant,

i)  Classify the type of components that susceptible to failure in relation of function of materials, pressure and thermal efficiency.

ii) Identify the critical point in boiler component that should be periodically inspected from creep  failure.

Answer

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i)   Boiler tubes, Furnace, Superheaters, Steam piping, Turbine, Heat exchanger & Pressure Vessel

ii)  Bends, T-section, Reducing sections, Valves, Rigidity-held pipes & Hangers