What is the maximum storage time for low hydrogen electrodes in auxiliary containers?

• A. 1 hour
• B. 4 hours
• C. 10 hours
• D. 24 hours

Answer: (C)

Low-hydrogen electrodes are highly sensitive to moisture, and absorbed moisture can turn into hydrogen during welding, leading to porosity and hydrogen cracking. Storing them in an auxiliary container helps keep them dry for short periods during work, but there is a time limit to how long they can stay usable without re-drying. The maximum storage time in an auxiliary container is ten hours. If you need to store them longer than that, re-dry the electrodes in an appropriate oven or use fresh, properly dried stock before welding.