Manual welding
Magnetism in welding: how to deal with magnetic blow
November 24, 2025
When welding ferritic steels, especially high-strength grades, magnetic blow can become a real challenge. This phenomenon occurs when magnetic fields interfere with the welding arc, causing instability, spatter, and sometimes making welding almost impossible.
Jani Kumpulainen
Jani Kumpulainen
Jani Kumpulainen
Welding Technology Manager at Kemppi Oy. International Welding Engineer (IWE) and Inspector (IWI-C) who has over 15 years of experience as a welding expert in welding process development, welding coordination of pressure vessels and international sales. Interested in understanding the whole welding industry including welding processes, weldable materials, and welding quality standards.
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Master T is a premium TIG welding machine for professional AC DC TIG welding. It delivers exceptional weld quality, precision, and energy efficiency. With advanced features like MAX WeldClean and DeMagnetization mode, it boosts productivity while ensuring consistent results.
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