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Welding consumable Tig Welding Nozzle

Apr 04, 2018

Why does welding consumables TIG welding nozzles have different sizes?


There are 4-8# five kinds of nozzles, welding carbon steel can use 4-5# nozzle, 


welding stainless steel and aluminum and aluminum alloy should use 6-7# large nozzle to strengthen the protection range of weld and heat affected zone. 


Welded titanium and titanium alloys and other non-ferrous metals should be selected 7-8 # larger nozzles to prevent the weld and heat affected zone is oxidized.

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