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Welding 1/2 3/8 steel

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Brent

03-26-2003 14:12:42




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I am needing to weld a piece of 3/8" steel on top of a piece of 1/2" steel. They will be on top of one another (a lap joint?)and welded "in the crack". My question: What type of rod and how many amps (AC stick welder)should I run? Should I bevel the edges between the pieces first? This will have a load bearing force on it.




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Alton

04-03-2003 20:05:36




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 Re: Welding 1/2 3/8 steel in reply to Brent, 03-26-2003 14:12:42  
I use 7018AC rods. These weld better with AC that the regular 7018. The temp is on the side of the box use only enought heat to get penetration the cooler the metal the better they weld. You can buy them by the pound. I usually don't get too many at a time as moisture is absorbed into the flux when lying around and makes them harder to strike.



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wdTom

03-26-2003 17:43:44




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 Re: Welding 1/2 3/8 steel in reply to Brent, 03-26-2003 14:12:42  
Well I am no expert at welding, however I usually stick what I want together and it stays and looks good to boot. I would use a 5/32 electrode and enough heat to make it snap, carckle and pop. As a guess maybe 180 amps. Look for a nice smooth bead, and if you need to or are using smaller 1/8" rods, make one pass, then more passes building up first one side, then the other side of the original weld. You can keep on going this way until you have enough solid metal to weld almost any thickness.

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Brent

03-26-2003 18:07:31




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 Re: Re: Welding 1/2 3/8 steel in reply to wdTom, 03-26-2003 17:43:44  
Thanks!

Used 5/32 7018 and worked great!



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