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table 7.9 of ASME VIII Div.2
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table 7.9 of ASME VIII Div.2
I’m having a discussion about the acceptability of indications by applying table 7.9 of ASME VIII Div.2.
There are two different opinions. It is not clear whether, in the event that a subsurface defect has a height lower than the value in the table and a length greater than 6.4 mm, the imperfection is acceptable or not.
In my opinion, to be unacceptable, both the height (a/t) and the length must exceed the values in the table and if it exceeds only the length, the limit is 4t.
Thanks to anyone who can help me. -
1 Reply
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Hi,
I have found this:
you determine both your a/l and your a/t for a given thickness. This will likely require linear interpolation(s). You then compare your a/t% to your a/l for that thickness. If your a/t% falls below the allowable a/t% for that thickness, the flaw is allowable.
General formula for interpolation:
http://www.ajdesigner.com/phpinterpolation/linear_interpolation_equation.php
Hope it helps.
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