Food grade aluminum welding?

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My brother gave me a small water pitcher he uses. Has 2 rivets that hold the plastic handle on. Inside the plastic handle there is an aluminum insert that is pressed or glued into the handle.I can easily weld the aluminum insert no problem. My questions is, is it safe to drink out of after? Are 4043,5356,4943 all food grade safe? I will fix it one way or the other. If not for drinking then for keeping the garage to splash water on projects or hold bolts or misc crap.Torchmate 2x2 CNC with Flashcut CNC controlsHypertherm Powermax45 Esab ET220i Razorweld 195 MigRazorweld 200ac/dc TigTormach 770, Tormach xstechRazorweld, Vipercut/Vipermig, SSC Foot Pedal Dealer
Reply:Originally Posted by GambleMy brother gave me a small water pitcher he uses. Has 2 rivets that hold the plastic handle on. Inside the plastic handle there is an aluminum insert that is pressed or glued into the handle.I can easily weld the aluminum insert no problem. My questions is, is it safe to drink out of after? Are 4043,5356,4943 all food grade safe? I will fix it one way or the other. If not for drinking then for keeping the garage to splash water on projects or hold bolts or misc crap.
Reply:The main concern ,I would think, would be acidic corrosion of the weld and the pitcher. Since it is only water, unless your water is very acidic, I wouldn't get too concerned. Long term storage of acids in the container is likely more of a concern than the weld.http://aluminium.org.au/FAQRetrieve.aspx?ID=43869http://healthycanadians.gc.ca/produc...sinier-eng.phphttp://aluminium.matter.org.uk/aluse...plications.asp---Meltedmetal