UltraMag S4

Ultramag® S4 is your first choice when MIG welding on metals with a low to medium presence of surface contaminants such as rust or mill scale. Ultramag® S4 MIG wire has all of the advantages of Ultramag® S3, with slightly higher levels of manganese and silicon. It has higher “cleaning” levels, and produces a more fluid weld puddle and flatter bead profile. Ultramag S4 has an excellent reputation for feedability and trouble-free performance.


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