Wrong gas

[Boss]

Lol No, I dont weld stick unless I can avoid it.

I welded a quick T fillet and lap earlier and it welded fine so I think there maybe a lot of contamination on the steel and as you say the toxic cup probably is a bit of a waste on a corner fillet. So at least the gas is fine. I'm not trying to get colours out of the stainless, it just sort of happened. At college I usedto over heat the stainless and get the horrible grey mess so I decided to break the habit and the colours appeared.


The toxic cup has 3 diffusers in it, the main gas lense and 2 secondary diffusers over the cup mouth.....there half the length of a standard lense which is why I left it on.

Like I say I'm not a pro, just stick with what works

 

[Richard.]

Lol No, I dont weld stick unless I can avoid it.

I welded a quick T fillet and lap earlier and it welded fine so I think there maybe a lot of contamination on the steel and as you say the toxic cup probably is a bit of a waste on a corner fillet. So at least the gas is fine. I'm not trying to get colours out of the stainless, it just sort of happened. At college I usedto over heat the stainless and get the horrible grey mess so I decided to break the habit and the colours appeared.


The toxic cup has 3 diffusers in it, the main gas lense and 2 secondary diffusers over the cup mouth.....there half the length of a standard lense which is why I left it on.

Like I say I'm not a pro, just stick with what works

Your absolutely right, the colours generated by the surface oxides show your welding it correctly because if needs be these can be removed by form of pickle/acid paste etc. if it goes grey through over heating it's done for as the alloys that make stainless stainless have been burnt out of it so there is nothing wrong with what your doing there. A lot of people try and purposefully achieve those colours as its visual appearance is quite attractive. This isn't necessary and usually done by welders that either weld for photographs or welders that don't understand what the colours actually are. You might not be a pro but you can sure as hell lay down a nice fillet. Good luck.

 

[Boss]

cheers for that, nice to know I'm doing something right.