FAQ
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Why is hydrogen a concern in welding?
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What electrode can I use to join mild steel to stainless steel?
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What consumable should be used to weld cast iron?
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What consumables are better for welding over rusty, dirty steel?
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Why are the Charpy impact values from my test welds lower than that printed on your Certificate of Conformance?
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Why is preheat sometimes required before welding?
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What is interpass temperature?
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Is MIG welding a low Hydrogen process?
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Does it really matter if we use 1.0mm or 1.2mm diameter, there is hardly any difference ?
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Is the specification EN440:G3Si1 the same as the the old SG3 specification?
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What length of 6mm leg length fillet will I get from an 18Kg spool of Supramig?
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Which wire is best for butt welds, Supramig or Supramig Ultra?
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Does Carbon Dioxide shielding gas give a colder weld and less penetration?
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All mild steel MIG welding wire is the same, the only difference is the price !!
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How do I weld 7075?
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Why is my aluminium weld much weaker than the parent material?
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What type of shielding gas should I use for aluminium welding?
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For GTAW, what type of electrode is best for aluminium?
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How much preheat should I use when welding aluminium?
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What is the proper stress relieving practice for aluminium welds?
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How can I tell different aluminium alloys apart?
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How do I GTAW weld two dissimilar thicknesses of aluminium?
When an operator has two dissimilar thicknesses, he or she must set the parameters so that they are high enough to weld the thickest piece. When welding, favor the joint and put more of the heat on the thicker piece.
