In the GTAW electrode classification ERXXS-Z, what does the 'R' denote?

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Multiple Choice

In the GTAW electrode classification ERXXS-Z, what does the 'R' denote?

Explanation:
In GTAW electrode classifications, a letter in the designation indicates the form of the electrode filler metal. The R in ERXXS-Z designates that the electrode is in rod form. This tells you the filler metal comes as a solid rod rather than some other form. The other options don’t fit because they describe non-metal or unrelated concepts (resin would imply a binder, radius is a geometric term, and referenced isn’t a usable designation in this standard).

In GTAW electrode classifications, a letter in the designation indicates the form of the electrode filler metal. The R in ERXXS-Z designates that the electrode is in rod form. This tells you the filler metal comes as a solid rod rather than some other form. The other options don’t fit because they describe non-metal or unrelated concepts (resin would imply a binder, radius is a geometric term, and referenced isn’t a usable designation in this standard).

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