Ive never had any issues with 7018 having issues. Granted I’m not a metallurgist looking for Hydrogen embrittlement. I dont keep my rod in an oven, just a regular rod storage can. Same goes for my 5P+(6010)
Here is a snipbit from Miller welds
Cellulosic stick electrodes (i.e., those of the EXX10 and EXX11 classifications, such as E6010) present a unique set of challenges related to hydrogen. Cellulosic stick electrodes are common in pipeline applications and should never be stored in an electrode oven. They should be stored at room temperature, protected from the environment. The moisture that is present in cellulosic electrodes creates specific arc characteristics. During welding, the cellulose breaks down in the arc, and is a source of carbon, hydrogen and oxygen in the weld pool. Manufacturers understand this breakdown, and formulate the electrodes to provide a specific weld metal chemistry in consideration of the chemical reactions that occur in the molten weld pool. Drying out the cellulosic electrode coating shifts the composition and can lead to weld metal cracking. Bottom line: while hydrogen is generally undesirable, a cellulosic stick electrode should never be dried to remove the moisture manufactured into the electrode. If a cellulosic stick electrode used in pipeline applications becomes wet it should be discarded, and should not be reconditioned by drying it in a rod oven. Likewise, if a cellulosic stick electrode becomes overly dry, either from inadvertent drying in an electrode oven, or from exposure to hot, dry weather, it should also be discarded.