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Root opening as per AWS and CWS

Root opening as per AWS and CWS

Root opening as per AWS and CWS

Can someone please comment on what should be the root opening for a butt joint of two plates(1/8" thick) with a backing plate as per AWS as well as Canadian welding standards?


RE: Root opening as per AWS and CWS

Are you asking to qualify a welder or a procedure. I assume your using D1.3 since the plates are only 1/8" thick.

RE: Root opening as per AWS and CWS

This is from a WPS. I would like to make sure if it's correct.

RE: Root opening as per AWS and CWS

A prequalified WPS requires 3/4 t min.,1-1/4 t max. t being 1/8". .09375 min - .15625 max. If you are qualifying (PQR) there is no min or max.root gap As per D1.3
I have no idea of CWB.

RE: Root opening as per AWS and CWS

Thank you for the answer.

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