In the food, pharmaceutical and chemical industries, MAG welding is indispensable, as it is a quick and easy process, especially useful for welding stainless steel materials of larger thicknesses, it is also suitable for automation. The final part presents literature on stainless steels, welding processes, welding equipment, and the most common welding defects. In the experimental part, we compared the effects of three different shielding gas mixtures on the final appearance, mechanical properties, microstructure, color, and shape of welds, using destructive and non-destructive tests. We found that all three shielding gas mixtures achieve the excellent weld properties mentioned above, which differ only slightly from one another.
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