What welding electrodes are used for high hydrogen sulfide pipelines?
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Question: What type of welding electrode is used for high hydrogen sulfide pipelines? Acidic or alkaline, or both? As long as the hardness meets the requirements, is that fine? Stress cracking needs to be prevented.
It’s been a long time since the answer was given; I’ll mark it myself.
ERNiCrFe-3 is quite good or better –5
Of course it should be low-hydrogen; ideally, it should be high-toughness low-hydrogen or ultra-low-hydrogen.