DW as with most hobby welders I have no idea of the origin of most of my steel. The material I was using was a frame for our HS weight platforms whih were being discarded after 12 years so I stripped a few and used it for my welding table frame. I made some of the adjustments suggested my others and it seems better I did get some good spatter but I was welding in a difficult corner and I'm pretty sure my gun angle was the cause.