Big time sneaky lurker here. Regarding Hardox 450 /500 and AR 450
Twice a year I have a job welding in a wear plate in to a "grate". I use 1/16 TM 771 wire shielded with co2. Lincoln sells the same thing only better called Ultra core 712C.
If its cold out, and it almost is all the time,, I pre heat as hot as i can get this big lump with a 2'' propane torch and weld . The welds (every 4inches) keeps the whole thing sort of warm. Also after its welded I lay down a pass of hard face wire over the weld to protect it . I have never had one cut loose '' on the job''.
BUT, as I weld temporary hoisting loops on the wear plate I have had them break off without warning. I believe its because the weld was small and cold.
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The other Woodrow in Northern Wisconsin
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