E7018 vs ER70S3 welds

[Ignoramus10660]

Let's say that you have two welds connecting identical materials. Both
are well done and produced by qualified weldors, with proper settings,
etc.

Would there be a material difference in strangth or ductility or
performance, between welds done with E7018 (stick) or ER70S3 (MIG).

i

[dca...@krl.org]

No significant difference. The Mig is low hydrogen as is the E7018. I would trust the Mig a bit more because the E7018 might not have been stored in an oven.

Dan

[Lloyd E. Sponenburgh]

"dca...@krl.org" <dca...@krl.org> fired this volley in
news:b612dc2e-4ab8-476e...@googlegroups.com:

> I would trust the Mig a bit more because the E7018 might not have
> been stored in an oven.

It would have been if it was done according to Ig's initial conditions --
"qualified weldor".

Lloyd

[pyotr filipivich]

Ignoramus10660 <ignoram...@NOSPAM.10660.invalid> on Sat, 05 Apr
2014 17:28:58 -0500 typed in rec.crafts.metalworking the following:

There should not be any difference, all things being equal.

But that's the thing - can you be sure all the things are equal?


--
pyotr filipivich
"With Age comes Wisdom. Although more often, Age travels alone."

[Richard Smith]

Iggy's question is interesting - certainly to me - and I would like to know practical experienced knowledge / insight on this.

7018 welds are very strong and tough - often get general bending of
the metal around the weld in overstress - protecting the weld. Even
when ground-at a lot, reasonable penetration can leave hidden bits of
weld remaining, so it can be very hard to break off "temporary
attachments" someone has seen fit to do with a 7018 (where 6013
temporary attachment would serve well but is easily removed).

Please - I am also interested in Iggy's question - relatively, how
does good ER70 rate alongside 7018?

Rich Smith

[Ignoramus30810]

On 2014-04-06, Richard Smith <nu...@void.com> wrote:
>
> Iggy's question is interesting - certainly to me - and I would like
> to know practical experienced knowledge / insight on this.
>
> 7018 welds are very strong and tough - often get general bending of
> the metal around the weld in overstress - protecting the weld. Even
> when ground-at a lot, reasonable penetration can leave hidden bits of
> weld remaining, so it can be very hard to break off "temporary
> attachments" someone has seen fit to do with a 7018 (where 6013
> temporary attachment would serve well but is easily removed).

Yep, 7018 s very ductile and can bend a lot before breaking. This is
why I use it for those "anvil tables" and such.

i

[SteveB]

j

My criterion would be if it HAS to hold, or is subject to a lot of
stress, I'd stick it. Yes, you can crank up the amps on a wirefeed, but
I just feel more confident with a hot 7018, or even 7014 vs. E70.


Steve

[Ignoramus30810]

On 2014-04-07, SteveB <snu...@hemlock.net> wrote:
>
> My criterion would be if it HAS to hold, or is subject to a lot of
> stress, I'd stick it. Yes, you can crank up the amps on a wirefeed, but
> I just feel more confident with a hot 7018, or even 7014 vs. E70.
>

This is how I see it also. Stick it with 7018

I use 6013 for all quick unimportant jobs.

i

[pyotr filipivich]

Richard Smith <nu...@void.com> on Sun, 06 Apr 2014 13:05:32 +0100 typed

in rec.crafts.metalworking the following:
>pyotr filipivich <ph...@mindspring.com> writes:
>
>> Ignoramus10660 <ignoram...@NOSPAM.10660.invalid> on Sat, 05 Apr
>> 2014 17:28:58 -0500 typed in rec.crafts.metalworking the following:
>>>Let's say that you have two welds connecting identical materials. Both
>>>are well done and produced by qualified weldors, with proper settings,
>>>etc.
>>>
>>>Would there be a material difference in strangth or ductility or
>>>performance, between welds done with E7018 (stick) or ER70S3 (MIG).
>>
>> There should not be any difference, all things being equal.
>>
>> But that's the thing - can you be sure all the things are equal?
>>
>

>Iggy's question is interesting - certainly to me - and I would like to know practical experienced knowledge / insight on this.
>
>7018 welds are very strong and tough - often get general bending of
>the metal around the weld in overstress - protecting the weld. Even
>when ground-at a lot, reasonable penetration can leave hidden bits of
>weld remaining, so it can be very hard to break off "temporary
>attachments" someone has seen fit to do with a 7018 (where 6013
>temporary attachment would serve well but is easily removed).
>
>Please - I am also interested in Iggy's question - relatively, how
>does good ER70 rate alongside 7018?

For what?? is my response.

It seems, according to the textbook, that the two are pretty much
equivalent - they both give a joint with 70,000psi tensile strength.
One difference to E7018 is that it can be used with AC, while the
ER70s3 is recommended for DC+.
Your Mileage will vary, I'm not a welder, nor did I stay at a
Hotel 6. But I did just finish a class on the subject, "and I've read
a book".

[SteveB]

On 4/6/2014 10:12 AM, Ignoramus30810 wrote:

j

My criterion would be if it HAS to hold, or is subject to a lot of
stress, I'd stick it. Yes, you can crank up the amps on a wirefeed, but
I just feel more confident with a hot 7018, or even 7014 vs. E70.

Steve

[Gunner Asch]

Indeed. When it needs to stick...I always grab the stick..and
often..6011


--

"
I was once told by a “gun safety” advocate back in the Nineties
that he favored total civilian firearms confiscation.
Only the military and police should have weapons he averred and what did I think about that?

I began to give him a reasoned answer and he
cut me off with an abrupt, “Give me the short answer.”

I thought for a moment and said, “If you try to take our firearms we will kill you.”"

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[John B.]

On Mon, 07 Apr 2014 21:01:57 -0700, SteveB <snu...@hemlock.net> wrote:

Didn't Gunner once write a treatise on how to MIG weld a spare tire
mount on a trailer?
--
Cheers,

John B.

[Randy333]

Should be no difference. I myself use ER70S6, has a little more
de-oxidizers in it, I do a lot of repair and the base metal is not
always perfectly clean.

If you follow the AWS, pulsed MIG is now becoming the preferred choice
for structural welds. Tends not to crack as fast in earthquakes.

I dropped my AWS membership but still get a ton of free trade
magazines.

Remove 333 to reply.
Randy

[Karl Townsend]

>>My criterion would be if it HAS to hold, or is subject to a lot of
>>stress, I'd stick it. Yes, you can crank up the amps on a wirefeed, but
>>I just feel more confident with a hot 7018, or even 7014 vs. E70.
>>
>>
>>Steve
>
>Indeed. When it needs to stick...I always grab the stick..and
>often..6011

I agree, 6011 gives far deeper penetration. And we all like that.

Now, I tend to get undercut edges with 6011. For a purty weld, put
7014 on top.

Karl

[Gunner Asch]

Ayup..or 7018.

200 gazillion miles of pipeline have proven this to work pretty well.

Gunner

[pyotr filipivich]

Gunner Asch <gunne...@gmail.com> on Tue, 08 Apr 2014 09:00:32 -0700

typed in rec.crafts.metalworking the following:

>On Tue, 08 Apr 2014 09:33:00 -0500, Karl Townsend
><karltown...@embarqmail.com> wrote:
>>>>My criterion would be if it HAS to hold, or is subject to a lot of
>>>>stress, I'd stick it. Yes, you can crank up the amps on a wirefeed, but
>>>>I just feel more confident with a hot 7018, or even 7014 vs. E70.

>>>Indeed. When it needs to stick...I always grab the stick..and
>>>often..6011
>>
>>I agree, 6011 gives far deeper penetration. And we all like that.
>>
>>Now, I tend to get undercut edges with 6011. For a purty weld, put
>>7014 on top.
>>
>>Karl
>
>Ayup..or 7018.
>
>200 gazillion miles of pipeline have proven this to work pretty well.

Reminds me of my Welding instructor's story about the Alaska
pipeline. Seems that the contract called for radiographic inspection
of all joints. Which the subcontractor did, for the first 200. Then
they got cute and tried to just copy the radiographs for all the
subsequent ones. Got caught when an employee thought something
suspicious. They had to go and re inspect all the welds. Including
the ones which were buried under the rivers. The company wanted to
send an ultrasonic unit down the pipe for those, but the court said
"radiographic is what it in the contract, and radiographic it will
be." So those section were uncovered, cut loose, inspected and signed
off, then welded back together, the new welds inspected and signed
off, and finally reburied.

Anyway, I've read a book, so I know that what I don't know would
fill a book, and that it is more than just "zoooottttt!" and your
done. Of course, I knew that back in the day, too. B-) [When 24 of
your 28 welds fail ... you know there is definitely room for
improvement.]

tschus
pyotr

[Larry Jaques]

Shortcuts were -very- expensive for that sub, huh? <g> Aren't most
pipelines robotically welded nowadays? Bots with cameras find the
junction, weld it up, grind it flat, inspect it, x-ray it, and run
down the inside of the pipe to get the next one. Very cool.

> Anyway, I've read a book, so I know that what I don't know would
>fill a book, and that it is more than just "zoooottttt!" and your
>done. Of course, I knew that back in the day, too. B-) [When 24 of
>your 28 welds fail ... you know there is definitely room for
>improvement.]

You picked up the hint, did you?

Har! That's the thing I love about MIG. It can look so darned good
and a fly landing on it can knock the whole blasted thing down. :/
I hope nobody brings up Gunner's runaway trailer tire in this thread.
<gd&r>

--
No greater wrong can ever be done than to put a good man at the mercy
of a bad, while telling him not to defend himself or his fellows;
in no way can the success of evil be made quicker or surer.
--Theodore Roosevelt

[Ernie Leimkuhler]

In article <CoGdnQjiY-43Ht3O...@giganews.com>,

The difference would have little to do with the weld filler material,
and more to do with the weld procedure.
If preheat and overall weld heat are the same, the welds should nearly
identical.

ER70S-3 isn't used for general steel welding.
It is used for only new clean steel. ER70S-6.
ER70S-6 has more deoxidizers and is better for general welding, and is
closer to 7018 in it's cleaning ability.

[Karl Townsend]

>The difference would have little to do with the weld filler material,
>and more to do with the weld procedure.
>If preheat and overall weld heat are the same, the welds should nearly
>identical.
>
>ER70S-3 isn't used for general steel welding.
>It is used for only new clean steel. ER70S-6.
>ER70S-6 has more deoxidizers and is better for general welding, and is
>closer to 7018 in it's cleaning ability.

Ernie,

GOOD to see you. Thought you were long gone from RCM.

Karl

[pyotr filipivich]

Larry Jaques <lja...@invalid.diversifycomm.com> on Tue, 08 Apr 2014
21:39:54 -0700 typed in rec.crafts.metalworking the following:

Possibly. Although I'm under the impression that there are
trade-off, that some parts of it can be automated, while others still
require an idiot to go and hang upside down and weld with a mirror.

>
>> Anyway, I've read a book, so I know that what I don't know would
>>fill a book, and that it is more than just "zoooottttt!" and your
>>done. Of course, I knew that back in the day, too. B-) [When 24 of
>>your 28 welds fail ... you know there is definitely room for
>>improvement.]
>
>You picked up the hint, did you?

I told the boss I'd give it a try. It wasn't critical, just tack
welding some sheet metal boxes together.

>
>Har! That's the thing I love about MIG. It can look so darned good
>and a fly landing on it can knock the whole blasted thing down. :/
>I hope nobody brings up Gunner's runaway trailer tire in this thread.
><gd&r>

No, that would not be nice.

[Gunner Asch]

Never did find that damned tire either!!

[Mark Pettinato]

replying to Ignoramus10660, Mark Pettinato wrote:
7018 welding rods are serious rods....used for code work on high rises and
high-pressure piping and other critical work. 7018 rods are stronger and have
less spatter. If you're looking where to get your materials, I'll provide the
link below and call them to give you a refund discount like up to 10% on your
certain purchases.

Interested getting stick rods :

> E7018
https://www.weldingcity.com/filler-metals-stick/mild-steel/e7018/5-lb-e7018-1-8-stick-welding-rods-free-ship.html

--
posted from
http://www.polytechforum.com/welding/e7018-vs-er70s3-welds-52849-.htm

[Freddy días]

replying to Ignoramus10660, Freddy días wrote:
Q tipo de alambre es parecido al e7018

--
for full context, visit https://www.polytechforum.com/welding/e7018-vs-er70s3-welds-52849-.htm