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What is Demagnetizing Pipe for Welding about?

This document discusses magnetism in pipes and its effects on welding. It states that residual magnetism from sources like pipe manufacturing and transport can cause welding problems like arc blow. Studies have found residual magnetism over 40 Gauss can make welding difficult. Measurement devices and techniques for demagnetizing pipes are discussed, including analog meters that are effective and easy to use in the field. Demagnetizing pipes to under 5-7 Gauss before welding is recommended to prevent defects

Author

wbcdwbjreboohutbadn

Language

EN