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R stamp requirements

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fhw

fhw

Mechanical
Joined
Nov 8, 2015
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4
Location
SA
Hi all,

If the Stainless Steel bolts of a U-stamped Heat exchanger body flange (Channel-tubesheet-shell) are going to be replaced with Carbon Steel bolts, would that need R stamp on the Heat exchanger?

Thanks
 
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Yes, see 3.3.4.2 e. This concerns defective bolts but the concept is similar you replace with suitable material that meets Code requirements.
 
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