TUBE MITER WELDS

[FCort]

Hi all,

From your experience, which weld symbol applies better to a miter steel connection of rectangular tubes?

HSS8x2x1/4 frame, AWS D1.1 prequalified welds CJP.

[bigcarl5000kg]

example from Google for a standard weld:

https://images.app.goo.gl/7FQtLc6HWBsac4fL6

[FCort]

Thank you for the response, but that image is not a prequalified weld CJP.

[j.hamelin · Accepted solution]

At first, for a CJP on any hollow tube you need a backing plate. 

Then you must specify the effective throat and the weld size.

So you can use something like this :

Advice : Don't put any symbol you don't fully understand before asking your welding sup/ing to back up your... mind!

[FCort]

Thank you for the response; just one comment, on CJP, the weld symbol shouldn't indicate the depth of the grove/weld, CJP implies that the weld metal extends through the joint thickness.

[j.hamelin]

@FCort 

It's seems you already know what you looking for so... was this a test?

FYI effective throat can be more than materials thickness if you ask for a convex finish.

[FCort]

It was not a test; this is a forum. It is better to clarify any doubt so everyone can gather the best information to reduce misinterpretations or mistakes.
Thanks for the reply.