What is the temperature at which low-hydrogen electrodes must be stored?

• A. 120 C
• B. 0 C
• C. 60 C
• D. 200 C

Answer: (A)

Low-hydrogen electrodes are prone to absorbing moisture in their coating, and any moisture can release hydrogen into the weld metal, increasing the risk of hydrogen-induced cracking. To keep the hydrogen content in the weld low, these electrodes must be kept in a dry environment and stored at a temperature that prevents moisture uptake while not degrading the coating. About 120 °C (roughly 250 °F) is the standard storage temperature to maintain dryness. Storing cooler (like 0 °C) can lead to condensation and moisture uptake; storage at too high a temperature (such as 200 °C) is unnecessary and could damage the electrode. So, 120 °C is the appropriate storage temperature.