For such materials, back shielding is required when using TIG welding; then why is there no need to retake the exam?

2026-03-31View Original

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Could everyone help take a look? For this FeIII category, the value has changed from 10 to 11 – why is there no need to retake the exam? It seems that for this category, argon back protection is required; since there has been a change, one should retake the exam

Reply #22026-06-13

If those taking the FeIII type of exam pass without argon protection, then welding with argon is even less of a problem.

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For such materials, back shielding is required when using TIG welding; then why is there no need to retake the exam?

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