Must be smooth and even, avoiding excessive convexity or concavity. Surface Defects No cracks, porosity, or lack of fusion are permitted.
In a typical project specification, ISO 17637 tells you to look, and ISO 5817 tells you what constitutes a defect (e.g., how big a pore is allowed to be). iso 17637 pdf
The story of ISO 17637 often begins on a high-stakes construction site or a shipyard. Here, a visual welding inspector carries a digital copy (often as a PDF) on a rugged tablet. Their mission is to ensure that every weld meets the stringent quality levels defined by related standards like ISO 5817 . Key Chapters of the "Story" Must be smooth and even, avoiding excessive convexity
