Manganese

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Anyone ever weld manganese?
Reply:I have....stick, all I had was 7018 or 309....309 ran great with no cracking.25 years of age.Been welding since Feb 23rd 2009.LU1007 Millwright (A1)
Reply:Originally Posted by tuffcreekalAnyone ever weld manganese?
Reply:Hey, whats up tuffcreek.Are you welding that stuff this weekend?Tim Beeker.
Reply:Originally Posted by tuffcreekalAnyone ever weld manganese?
Reply:Originally Posted by weldermikeYeah bud 1000's of pounds of rod, enough to make me sick just remembering those horrible days of my life. So much that I hope it never catches up and kills me.
Reply:Hi, I don't know how to weld it but I do know that it is in 7018H4R welding rod and the can states that manganese causes severe central nervous system damage and the condition is considered irreversible.  The first time I used it I walked structural beams and lost my balance for the first time in my career.  I believe it was from the manganese that I lost my balance.
Reply:I heard that manganese is in all stick welding rod and they seem to think that if you breathe too much of it for too many years, it can cause nervous system problems similar to Parkinson's Disease. Those tremors / twitches like Michael J. Fox has.
Reply:Virtually all steels contain some manganese, one of the biggest uses for Mn is in steel making. In smallish quantities it's used as a deoxidising agent, it helps prevent ductility problems from sulphur impurities and also improves strength and ductility. As Mn content increases strength/hardness goes up and like carbon it effects hardenability etc. Then are the 'special' maganese steels... over around 10%Mn you get an austenitic steel that is tough, abrasion resistant and work hardens LOTS without becoming super brittle. I've never welded it but If that's the stuff we're talking (often known as Hadfield steel or Mangalloy) about it's usually kept cool while welding to prevent/minimise grain growth and welded with a dissimilar stainless like 307... http://www.welding-alloys.com/products-services/wa-welding-consumables/electrodes/joining-electrodes/tetra-307-e.html
Reply:Originally Posted by tnjindAny tips? Process?
Reply:Hello fellas, welded it saturday......HORRIBLE! It was two 12' pieces of 1/2 x 1/2 key and very heat sensitive to say the least. I put 1" stitches 6" apart and had to clamp it the same way to keep it from looking like a snake.
Reply:Why would a 1/2x12 key be made of manganese??                                                   MikeOl' Stonebreaker  "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw
Reply:It's a conveyer guide/wear rod for a forging press.
Reply:Originally Posted by mla2ofusWhy would a 1/2x12 key be made of manganese??                                                   Mike
Reply:Not sure about all that chemical/ element stuff, i'm not a metallurgist or chemist, im a welder. The engineer on the job told us it was manganese, didnt go into a deep discussion about if it was pure or an alloy. They supplied the rod, I welded.
Reply:My experience w/ manganese is limited to rock crusher wear metal. I've had to weld up cracks in roll crushers. We used "nicromang". Can't remember the mf'r.                                                                MikeOl' Stonebreaker  "Experience is the name everyone gives to their mistakes"Hobart G-213 portableMiller 175 migMiller thunderbolt ac/dc stick Victor O/A setupMakita chop saw