burglar Posted July 2, 2009 Posted July 2, 2009 I was welding in a steel mill some 50 years ago and not sure how much I have remembered. I stick weld and was told by a welder friend to use missile weld and now I find that a member of this site says that 309 ss is the same but at lower cost. Does anybody have info about this stick??? Quote
Glenn Posted July 2, 2009 Posted July 2, 2009 Lincoln ER309/309L ER309/ER309L DC- Used for welding similar alloys in wrought or cast form. Occasionally used for welding 18-8 base metals when severe corrosion conditions exist, and at times, welding dissimilar steels. Intergranular corrosion resistance is maximized by keeping the carbon content at or below 0.03%. Quote
HWooldridge Posted July 2, 2009 Posted July 2, 2009 "Missile weld" is welding jargon for several makes of rod. Many moons ago, I did a short stint selling Certanium consumables and they had an outstanding all purpose rod that would weld most anything (IIRC it was grade 707). As is my custom, I became friends with the application engineers and they eventually conceded that most of their rods were upgrades in flux and wire over standard formulations. I kept a few samples after I left the company and that rod was pretty amazing - the sales demo was to weld two pieces of broken file back together then stick it in a vise and try to break it with a hammer. The weld would usually bend to 90 degrees and not break until you went the opposite direction. I once demo'ed it to an old pipeline burner - he said it was 'missile rod' and he could weld ANYTHING with plain old 7018. Of course, that wasn't exactly true but I never did make the sale. BTW, I use ER309 for tough applications and it works well - ductile and will stick to most anything ferrous. However, I also use rods specifically made for cast iron when that type of welding is required - most 'regular' rods don't really cut the mustard on cast. Quote
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