reduced diameter ("necked") stud bolts in pressure vessels

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MW

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Nov 9, 2023, 9:59:43 AM11/9/23
to Materials & Welding
one of the pressure vessel spec indicates "For Bolt sizes over 63.5 mm (2-1/2 in), reduced diameter ("necked") stud bolts shall be used".

what is the significance and what happens if full section studs are used?
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