Why is Fillet welding preferred for Rimmed Steel?
Rimmed Steel manufacturing processes provide a case or rim of very cleanmaterial free of defects. Conversely impurities tend to concentrate in themiddle section of ingot or billet. This feature persists through the rollingprocess, so that plates of this kind tend to have their central core less cleanthan the superficial layers. This property provides and advantage when designcalls for fillet welding, which does not penetrate to the center of the plate.
