It is important that welds be AT LEAST as strong as the joined metal. In order to test that, the coupons are put into a vice and stressed until the joint fails.
OR NOT!! The test successfully demonstrates that the weld joint is as strong as the steel. A little more practice so that the welds look pretty, and practice adding filler rod, and I will feel like I can start tackling the fittings.
One of my advisers pointed out that I need to be as comfortable as possible with my arms supported in order to produce nice even welds. That advice helped quite a bit, though I am still working on ways to keep my arms supported while being able to move the torch along the weld.
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