It's expired. What color is it? It's better to have screenshots
I checked the relevant information about electrode idle period narrative is not found, only the storage warehouse ventilation requirements. Electrode drying. No harmful gas and corrosive medium. The temperature 10-25 degrees, humidity fifty percent. To damp. Drug skin discoloration. Core rust after drying of the electrode to assess the quality of the performance indicators meet the requirements, can be assured.From the point of view of the situation (I used to put blind, for six years), medicine skin color. There are core electrode drying after rust still use, do not feel abnormal, (of course not weld inspection index). But there have been coating stripping or drying after stripping, can not use.Cast iron electrode used before heating up to 150 degrees, heat preservation 2 hours, and then use how much, how much can be used, or else there will be a lot of pores,
Sure.Welding rod can not be damp, otherwise it will seriously affect weld quality.
