To understand why AISI-compliant chairs are better, one must first understand what a non-compliant chair typically is: a few pieces of rebar tack-welded to a bent plate. In contrast, AISI E 1 Volume II Part VII requires:
An anchor bolt chair is only as good as its connection to the vessel. Always specify continuous fillet welds rather than stitch welds to prevent moisture from getting trapped behind the chair, which leads to hidden corrosion. The Verdict aisi e 1 volume ii part vii anchor bolt chairs better
Understanding AISI E-1 Volume II Part VII: Why Standardized Anchor Bolt Chairs Are Better To understand why AISI-compliant chairs are better, one