On Monday, July 18, 2016 at 8:32:30 PM UTC-4, Ignoramus8242 wrote:

The question is will welds of regular mild steel be "sound".

i

The welds in mild steel will be sound even if the rods have been exposed to the air and are not good for low hydrogen welds.

Dan

On 2016-07-19, wrote:
On Monday, July 18, 2016 at 8:32:30 PM UTC-4, Ignoramus8242 wrote:

The question is will welds of regular mild steel be "sound".

i

The welds in mild steel will be sound even if the rods have been
exposed to the air and are not good for low hydrogen welds.

Dan, what I mean to ask, will welds of MILD STEEL be sound if I
perform them with 8018 or 9018 electrode, as opposed to 7018.

i

"Ignoramus8242" wrote in message
...
On 2016-07-19, wrote:
On Monday, July 18, 2016 at 8:32:30 PM UTC-4, Ignoramus8242 wrote:

The question is will welds of regular mild steel be "sound".

i

The welds in mild steel will be sound even if the rods have been
exposed to the air and are not good for low hydrogen welds.

Dan, what I mean to ask, will welds of MILD STEEL be sound if I
perform them with 8018 or 9018 electrode, as opposed to 7018.

i

The test we learned for that was to make a butt weld between two
pieces of scrap, grind the beads mostly flat and then bend the seam
over double along the weld line. 1/8" steel was bent with a hammer in
the shop vise and they had a 50 ton press for heavier pieces.

Try it with a single unwelded piece of steel first to see how or if it
cracks. We were practicing on mixed scrap from a fab shop, mostly
plasma torch cutouts.

--jsw

On Monday, July 18, 2016 at 10:38:32 PM UTC-4, Ignoramus8242 wrote:

Dan, what I mean to ask, will welds of MILD STEEL be sound if I
perform them with 8018 or 9018 electrode, as opposed to 7018.

i

You have this posted in SEJW so Ernie ought to comment. But as I understand it, you should be fine using 8018 or 9018 on mild steel.

Dan