Q & A details -I am having problems passing the tensile tests for my procedure qualification of aluminum alloy 6061-T6 on 6-inch-diameter pipe, Schedule 120.
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I am having problems passing the tensile tests for my procedure qualification of aluminum alloy 6061-T6 on 6-inch-diameter pipe, Schedule 120.

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I am having problems passing the tensile tests for my procedure qualification of aluminum alloy 6061-T6 on 6-inch-diameter pipe, Schedule 120.

I am using ER4043 filler metal for a gas tungsten arc welding (GTAW)-gas metal arc welding (GMAW) combination process on the first joint and ER5363 on the second joint. None of the joints passed both the wraparound side bend tests and reduced section tension tests. All test specimens broke in the weld area with and without some porous indication in the GMA weld deposits.

For tension tests I got only 50 percent of the required minimum yield strength.

What went wrong with my welding procedures?

Wococarbide

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