![]() My feeling is the anchor bolt should not be called out as "SA-325" but before I call the guy on it, I want to be sure there is not some requirement in the pressure vessel world that I'm ignorant of. My question is would there be some requirement in ASME pressure vessel code that would require a ASME spec'd anchor bolt? This is usually left to the civil realm where ASTM specs are used. ![]() I've worked on quite a few plants and I don't think I've ever seen an ASME spec called out for anchor bolts. the general design procedure of horizontal pressure vessel, which include design of shell, design of Head, design of nozzles and design of Anchor bolt. I suppose if you can find an A325 bolt long enough you could bury it in concrete and use it as an anchor bolt but I've never heard of it being done. 2.13 DESIGN OF ANCHOR BOLTS Vertical vessels, must be fastened to the concrete foundation, skid or other structural frame by means of anchor bolts and the base (bearing) ring. The preferred spec is ASTM F1554 for anchor bolts. After the exact bearing pressure vessel fabrication when you can find anchor bolts are assured by aisc steel should be pulled out some matlab truss analysis for. As a structural engineer I can tell you, you don't use ASTM A325 bolts for anchor bolts. ![]() My understanding of ASME material specs are that they are usually the same as ASTM specs except that they have put an "S" in front of the designation. I'm reviewing drawings where the vendor has called out the anchor bolts as "SA-325". 11.2 For steel tank and pressure vessel design the thread length of the anchor bolt under the nut must be designed according to paragraphs 7.2.7.3.4 and 7.2.7.4.2 of ERBB standard EI-004.
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