Do the welds between the heat exchange tubes and the tube sheet belong to Class C or Class E welds?

2018-03-26View Original

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Do the welds between the heat exchange tubes and the tube sheet belong to Class C or Class E welds?

Reply #22018-03-26

One of the Class E welds must be a non-pressure-bearing component. Both the heat exchange tubes and the tube sheet are pressure-bearing components, therefore the welds do not belong to Class E welds.

Reply #32018-03-26

The welds between the heat exchange tubes and the tube sheet do not belong to Class C, nor do they belong to Class E welds. It belongs to Class D welds.

Reply #42018-03-26

There is a diagram on 151; it should be Category C

Reply #52018-05-10

Category C: You can take a look at page 150, page 13, where there is a clear explanation

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