Storing Low Hydrogen Electrods
Storing Low Hydrogen Electrods
(OP)
Hi,
I would like to know how long LH electrods can expose to atomosphier without baking or redrying. Do we need to rebake LH electrodes in 350C if the welder turns off the portable oven ,which was in 130C, for 1-2 hours (let's say for break)?
Thanks
I would like to know how long LH electrods can expose to atomosphier without baking or redrying. Do we need to rebake LH electrodes in 350C if the welder turns off the portable oven ,which was in 130C, for 1-2 hours (let's say for break)?
Thanks





RE: Storing Low Hydrogen Electrods
RE: Storing Low Hydrogen Electrods
You can refer to AWS D1.1 for guidance since API 1104 nor ASME pressure piping codes do not address the subject.
Best regards - Al
RE: Storing Low Hydrogen Electrods
To prevent that, the ovens must be kept hot - way above the condensation limit for short-time door openings for reloading rods and getting them out.
So, if the power was off for a while, but the oven didn't cool down; if the door didn't open to let in moist air, there is no problem. BUT! You have to establish that fact by some real-world numbers or evaluation in the log.