Testing your welds !!

[CTWV50]

Thanks for the reply Michael, I did grind back the steel and bevel filed the ends of the tubes so shouldn't be contaminated. I'm using BOC Argoshield at 10 L/min. Might try heating the steel first see if it helps to remove any contaminates. I'll finish the weld and then a big bubble will grow where I finished. I'm not a great welder as I'm inexperienced, should I try more of less gas? I'll also try a test on some other steel I've had more luck with.