What section for square tube qualification?

By Rush Date 07-26-2010 16:07

Have a requirement to weld 1" x 1" x 0.065" wall square tubing, steel A 513
Drawing calls out to follow AWS D1.1
Need to qualify a weld procedure, and a couple of welders.
Information I am aware of has the lower limit of 1/8" in D1.1.
There must be another standard for writing a WPS for light gage tube.
Anyone with info would be appreciated.

By bozaktwo1 (***)

Date 07-26-2010 16:50

Since you need to qualify a procedure, B2.1 would be a good place to start. I believe AWS sells a GTAW < 1/8" that you might be able to use for structural tube work, but not if you're doing TYK connections.

By Duke

Date 07-26-2010 22:29

D1.1 sub clause 1.2 limitations (2) "When base metals thinner than 1/8 in. (3mm) thick are to be welded, the requirements of AWS D1.3, Structural Welding Code - Sheet Steel, should apply. When used in conjunction with AWS 1.3, conformance with the applicable provisions of this code shall be required.

By Kix

Date 08-13-2010 19:55

Key word, "Should Apply", but you don't have to. You can still follow all the clauses and be legal with specialzed PQR's below 1/8" Min with the D1.1 code. D1.3 is a lot more forgiving when it comes to PQR's though. I had to qualify material below an 1/8" for T-K-Y connections to D1.1 once upon a time.