Stick Welding Tips, Certification tests, machines, projects
Bill Beauregard
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    Thu Jan 24, 2013 9:32 pm
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    Green Mountains of Vermont

If in fact you are a student, flux is designed to shield the hot arc, and deposit filler metal from atmosphere. A component of that shielding is to physically form a barrier, around the most reactive part of the arc, as it is consumed, barrier gasses are formed to displace air.

Tensile strength speaks to the strength of the weld it produces. For obvious reasons it is possible to F**K up a good weld and yield strength would be less.
Lightning
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    Wed Aug 24, 2016 9:55 pm

Yield strength is always going to be less than tensile. Yield strength simply refers to the amount of stress the metal can take before it "yields" --- in other words, where it won't spring back to its original size/shape/position. Yield strength refers to how much stress it takes to strain it permanently.

If you pull on a wire of steel until it permanently stretches (and thins as a result), you've reached its yield strength. If you kept pulling on it, stretching it like a piece of fishing line, until it broke, you would have reached its tensile strength.
fredimension
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    Tue Feb 20, 2018 9:16 am

Wow, thank you all everyone for the helpful and very informative replies.
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