Ah nicely spotted. This is where the argument was coming from as one is full pen and the other partial.sorry guys apples and pears are compared here. if you look closely these 2 blades are from different WPQR namely SDB115t and SDB2 30t, here are 2 different plate thicknesses namely 15t and 30t.
There are always restrictions, that’s what the tables are for though haha.There are restrictions in 15641-1 for fillet welds obtained by butweld