Practical Limits of Magnetic Particle Checks for Marine Deck Fittings

https://welding-flaw-detection.northcrestbrief.com/posts/scan-grid-design-for-precision-metal-rings-an-immersion-ut-guide

Practical Limits of Magnetic Particle Checks for Marine Deck Fittings Deck fittings use welded lugs, bases, and brackets exposed to harsh service. Magnetic particles can reveal surface and some near-surface flaws in ferromagnetic welds