being a newbe welding and trying to learn something, I contacted the local
welding school to know more about the high pressure welding exam.
Here in Quebec, Canada, it seem that the labor departement of the provincial
gouvernement is responsible for these test. I contact them and they sent me
The pipe is schedule 160, 2 inches nominal diameter (0.343 tickness)
The welding position is 6g (45 degre)
The root pass should be 6010 or 6011
All other pass should be 7018 or 48018
The weld should pass a radiographic exam
I know that the best way to learn is thru school, but I want to try, just
for the fun of it. I now have the pipe to practice, but need to know some
wich electrode should I choose, and why?
what is the appropriate current for each electrode?
what is the radiographic exam ?
I understand this is some kind of film that is turned around the weld and
exposed with "rayons x",
but what is the resut. Does it check the porosity. If there is porosity in
one layer, but no porosity in another layer, what will we see with the
radiography? To fail the test, do we need porosity, on every layer, at the
Thanks for any help.
PS: excuse my poor english, it's second language for me
17 years ago