Grizzly rebar

[Steve B]

I got a bunch of 3/4" rebar to use as the top level to my grizzly to
separate rocks and gravel fed to it by a front end loader. It will be right
at 4' x 8'. The pieces are U shaped, the legs being one foot, the long part
2'. What would be a good rod to use? 7018 or 6010?

Steve

[Tin Lizzie DL]

In article <jst722$b8l$1...@speranza.aioe.org>, ste...@gmail.com says...

Personally, I would probably go with 6011. Better penetration and it
won't matter as much if there is rust, mill-scale, or other contaminants
in the weld areas.

I would wonder about the stresses applied to the rebar- if you use
fillets, be sure to make them big enough in both leg-length and length
of fillet.

I would recommend that you don't wrap the ends of the rebar- leave a
little rebar sticking out beyond the fillet. If my imagination is
working properly, the stresses will be in compression on the rebar, and
in shear between the rebar and base-metal. Wrapping the ends could
actually weaken the assembly by creating stress-raisers in the fillet or
the HAZ.

--
Tin Lizzie
"Elephant- A mouse built to government specs." - Lazarus Long

[Gunner Asch]

6010


--
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capable of entrusting a man like him with the Presidency.
It will be far easier to limit and undo the follies of an
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and good judgment to a depraved electorate willing to have
such a man for their? president.. Blaming the prince of the
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fools that made him their prince".

[Bob Engelhardt]

Are you sure that you want to use rebar? I've heard that it can be a
real crap-shoot in the weld-ability. You probably don't want pieces of
rebar breaking loose because of brittleness in the HAZ. And with rocks
being dumped on them, brittleness is critical.

Unless you're using rebar that's specifically weldable. Then, "never mind".

[Gunner Asch]

Excellent point..and warning

Gunner

[Steve B]

"Bob Engelhardt" <bobeng...@comcast.net> wrote in message
news:jsus7...@news4.newsguy.com...

Were it a perfect world, or I hit the Lotto, I would be a little more
selective. As it is, I take where is, as is, and make the best of it. I
have operated heavy equipment all my life, and will stand by my own history
when it comes to using what I have available in a way so as to stretch out
the useful life of said item. If I know I have a fragile grizzly, I will
feed it slowly. If I have a huge maw jaw crusher, then I will pour it to
it.............

BTW, ALL rebar is weldable. It's just to different degrees. And to my
experience, I have had good luck with just E70-S-6 MIG. And any break will
be repairable before proceeding. No production quotas here.

YMM(and probably does)V, MHO, and all the standard disclaimers........

Steve

[RoyJ]

C60 rebar is the common grade of decent (but not great) rebar. Usually
specs out at slightly more than .6% carbon. If you can get a large weld
with plenty of admixture and a very slow cool, you can keep the HAZ
under control. But you WILL get a high carbon HAZ line this is much more
brittle than the rest of the piece. I knocked out a grate for my grill
last weekend from 'mystery metal' 1/2" rebar. 3 stringers with 16 cross
pieces, 48 welds. Looks like at least half a dozen of them have cracks
across the final weld puddle. No big deal for this application, (it will
get heated red hot repeatedly) wouldn't want to put any stress on it.

[Steve B]

"RoyJ" <Spam...@microsoft.com> wrote in message
news:06qdnU7XK-a1L27S...@earthlink.com...

As I think the 3/4" rebar will handle what I will be feeding it.

Steve

[chas]

If it is not feeding a crusher, then it is not critical if a piece of rebar
breaks off.
****************************************
"Steve B" <ste...@gmail.com> wrote in message
news:jst722$b8l$1...@speranza.aioe.org...