Burning flux on 7018?

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I found some old 7018s that have been open i dont know what brand they are but they are h4r's. When I practiced with them on some scrap the flux started to burn and catch fire. Whats up with them? I did try several of them and all of them did that.Miller Dialarc 250Miller Bobcat 225Hobart Oxy/FuelCouple of Dewalt and Milwaukee GrindersJET Bandsaw and Drill Press
Reply:I've never seen that before.And I've ran some rusty old 7018.Are you able to post a pic?Just a couple welders, big hammers, grinders, and torches.Work will free you.Men in dirty jeans built this country, while men in clean suits have destroyed it. Trump/Carson 2016-2024
Reply:Originally Posted by AKweldshopI've never seen that before.And I've ran some rusty old 7018.Are you able to post a pic?
Reply:Sounds like 6010
Reply:Originally Posted by Rock knockerSounds like 6010
Reply:I wonder if there is some old motor oil or similar on it?
Reply:I had a similar experience with some 15+ year old 7018s that were stored in a fish packing shed (wet). I was using an A/C miller buzz box. The rod would be glowing or melt out of the stinger if I turned the heat high enough to keep the rod from sticking.Miller 180SDLincoln weld pak 180Hobart 250ciMill Lathe
Reply:Too much amps?
Reply:Originally Posted by swampwelder13Too much amps?
Reply:Maybe they were gag rods from the joke shop? Have never heard of 7018 flux burning, 6010 yes.
Reply:a friend gave me a big box of 7018 several years ago said they were no good. had been soaked in trans fluid. i used the for non critical stuff and they would catch fire. did seem to hold ok though
Reply:Most of the 7018 rod I run has a darker grey coloured flux on it. blueshield and Esab.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720