Question

38. A non-metal which is used for
welding purpose is​

Answer 1

Answer:

Gas tungsten arc welding (GTAW), or tungsten/inert-gas (TIG) welding, is a manual welding process that uses a non-consumable electrode made of tungsten, an inert or semi-inert gas mixture, and a separate filler material.

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Answer 2

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Carbon rods are used in welding as electrodes, flux material and inert gas (Argon or Carbon dioxide to shield from oxygen) are also used in the process. ... Carbon and steel alloy called carbon steel and cast iron - for welding these materials, carbon (non-metal) may be used.