Fillet weld tolerance6/8/2023 ![]() ![]() In clause 12, undercut criteria differs when direction is transverse vs parallel to primary stresses.In clause 12, porosity criteria differs for groove and fillet welds.All welds must be visually inspected per clause 11.5.4.2 or 12.5.4.2 but welds subjected to additional NDE inspection may have further criteria defined.Is fabrication statically loaded (clause 11) or dynamically loaded (clause 12).In making accept/reject decisions, the following items may need to be considered: ![]() This criteria is usually defined in the applicable code while in other cases may be defined by the customer. In an ideal world, this criteria would provide clear instructions or features to make rejection decisions of all potential discontinuities. The reality however, is that many considerations can influence the acceptance evaluation making decisions a challenging task. In at least some cases, this results in Inspectors taking shortcuts in making judgement calls especially for discontinuities including porosity, undercut or convex fillet welds. Due diligence to evaluate based on code requirements would require taking the time and using suitable gauges, perhaps a magnifying glass and yes, arithmetic.
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