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Open root butt weld with 7018

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Open root butt weld with 7018

Postby martinr » Thu Dec 23, 2010 3:56 pm

I have 2 test pieces left to do on my MMA course in the UK: open root butt welds in both the flat and the vertical position (mild steel). I'll be using a 3/32" low-hydrogen E7018 rod, and I'd appreciate any advice. I know not to whip a 7018 rod, only to manipulate it in the pool. I'd appreciate suggestions as to the best gap and root face dimensions for both positions (which I assume would be the same for both) and any advice on control of the keyhole etc.

Many thanks and a happy Xmas

Martin
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Re: Open root butt weld with 7018

Postby kermdawg » Sat Jan 01, 2011 11:48 pm

sry for the late reply-

Need more info on your test. Plate or pipe?(I'd assume plate) What thickness plate?
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Re: Open root butt weld with 7018

Postby martinr » Sun Jan 02, 2011 5:48 pm

kermdawg wrote:sry for the late reply-

Need more info on your test. Plate or pipe?(I'd assume plate) What thickness plate?


Thanks and sorry, I should have said: it's 6mm plate.

Martin
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Re: Open root butt weld with 7018

Postby kermdawg » Wed Jan 05, 2011 12:07 am

Just to make sure my calculations are right-6mm is approx 1/4 inch right?
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