Pry bar repair

[Memmeddu]

This is another example of tool that I saved from trash ,the head is welded with 7018 it was broken in two sections , I use this sledgehammer with satisfaction

 

[Richard.]

I know that 7018 is a multipurpose rod
A friend of mine is a pipeliner ,time ago he said me that they got to weld a pipe , they used 7018 ,after years they knew that they weld together 304 stainless steel to steel ,the pipe still there no issues
7018 is low hydrogen , and it has also good mechanical properties
I saw a guy using 7018 to weld cast iron ,and someone used it to weld Cr Mo sockets to a lever
so that is why I was thinking to use it
But some folks tell me that 309 is better but I don't know
I can always do the first pass using 316 and do fill and cap using 7018 is 22mm to 16mm section and I believe it requires 12 or more rods because the bevel will be 50mm wide I think
Or I can cover all the parent metal in the Bevel using stainless steel rod than use 7018
What is the best option?

You’ve missed my point mate.
It wouldn’t really matter what you’ve got on the shelf just gob it together if you really want to fix it.
I’m saying it’s not worth the fuel money to drive to a supplier let alone buying consumables for that job.

 

[eLuSiVeMiTe]

Eek. Wouldn't have much confidence hoofing that hammer about hard.

Wouldn't want to have to it with a crowbar etc that had been welded either tbh.
I'm all for repairing and recycling but a sledge hammer giving up can be dangerous as can a jemmy giving up.

 

[gaz1]

thats what it is here cost too much than it is to get a new one gorilla bar 18.00 for new

worst part is the new bar is multi function compared to your one usage

 

[angellonewolf]

I know that may be is not the cheapest way to go , but this thing is old school and I would like to save it

save it to use or display there is a differance but as for use its prob not going to be that good


and your a braver person than i am you either know what your doing when welding what does seam to be strange as your asking what you need to use to fix the metal pole what seams to me are you dont know what you need to do to weld it well

but you have welded a sledge type hammer that im assuming your are using to break concrete etc swinging a 14 pound lump of metal over your head when you dont have enought experance to weld ?


pleass dont see this as an attack on you personly but as a bit of advice i dont know how to weld well and i will ask questions thats what the fourm is for but to weld some thing that is lighly to cause harm when you dont know what your doing is not a great idea


edit lot of people thinkng what im thinking just posted first

 

[Kent]

7018 are not thevrod to use. You can get small pack of repair rods suitable for higher carbon steels and cast.
That said you basically going to get rough with an item like this so i would not bother.
I have repaird many a medium carbon decking lifting bar etc by heating to red and just mig welding that generally works but if its a proper high carbon i can garantee it will break.
Best bet is repurpose the steel than try and create the same again. Put it on the" could be useful someday pile "
Cheap bars are ten a penny a good one would not have broken

 

[Memmeddu]

You’ve missed my point mate.
It wouldn’t really matter what you’ve got on the shelf just gob it together if you really want to fix it.
I’m saying it’s not worth the fuel money to drive to a supplier let alone buying consumables for that job.

Yes this for sure

 

[Memmeddu]

save it to use or display there is a differance but as for use its prob not going to be that good


and your a braver person than i am you either know what your doing when welding what does seam to be strange as your asking what you need to use to fix the metal pole what seams to me are you dont know what you need to do to weld it well

but you have welded a sledge type hammer that im assuming your are using to break concrete etc swinging a 14 pound lump of metal over your head when you dont have enought experance to weld ?


pleass dont see this as an attack on you personly but as a bit of advice i dont know how to weld well and i will ask questions thats what the fourm is for but to weld some thing that is lighly to cause harm when you dont know what your doing is not a great idea


edit lot of people thinkng what im thinking just posted first

Yes maybe the sledgehammer is to much dangerous I know that ,I use to swing on a wedge splitter ,destroy wood stuff

 

[Memmeddu]

7018 are not thevrod to use. You can get small pack of repair rods suitable for higher carbon steels and cast.
That said you basically going to get rough with an item like this so i would not bother.
I have repaird many a medium carbon decking lifting bar etc by heating to red and just mig welding that generally works but if its a proper high carbon i can garantee it will break.
Best bet is repurpose the steel than try and create the same again. Put it on the" could be useful someday pile "
Cheap bars are ten a penny a good one would not have broken

Yep that's the idea put it on the "could be useful someday"
Dismantling pallets and thing this way

 

[Pete.]

Those bars might not actually be that tough, I've bent them quite easily with nothing more than muscle power.

 

[Memmeddu]

I know that is not sure that my welds don't crack ,because various reasons is just to practice and have a good looking tool ,I will use it as now on the original length because I understand that the weld and related infect zone can break down and this can be dangerous
About the sledgehammer i know that can break an shoot out srakmels that can hurt me or other people
But the use isn't heavy
I think that I must break the corners to reduce the danger but it will be always there
My question was born to know what to do in this cases
So chrome vanadium to carbon steel
And now I know that 309 is a good rod for this application , that I need to preheat the parts ,that I need to beat on the welding to release the stresses build during welding

 

[Kent]

I know that is not sure that my welds don't crack ,because various reasons is just to practice and have a good looking tool ,I will use it as now on the original length because I understand that the weld and related infect zone can break down and this can be dangerous
About the sledgehammer i know that can break an shoot out srakmels that can hurt me or other people
But the use isn't heavy
I think that I must break the corners to reduce the danger but it will be always there
My question was born to know what to do in this cases
So chrome vanadium to carbon steel
And now I know that 309 is a good rod for this application , that I need to preheat the parts ,that I need to beat on the welding to release the stresses build during welding

I have never personally peened (beat) snything but cast
I can tell you that a weld in high carbon steel actually comes out more than snaps. Leavung a crator right around the toe of the weld pulling out all the bead
Its likely the pry bar could actually be welded ok from hot if it was say
En19 but the issue is nobody knows what it is.

 

[Memmeddu]

I have never personally peened (beat) snything but cast
I can tell you that a weld in high carbon steel actually comes out more than snaps. Leavung a crator right around the toe of the weld pulling out all the bead
Its likely the pry bar could actually be welded ok from hot if it was say
En19 but the issue is nobody knows what it is.

That's interesting what do you mean with
"Leaving a crater around the toe of the weld "
?

Essentially this may be tool steel ,carbon steel ,hardened steel ,or somewhat of steel .
We will never know what is it
What is the worst thing can happen ?
It will break trying to put together something?
Definitely I will never trust on a prybar or crow bar or this kind of tools to lift something where me or someone goes under it .
I opened my eyes , and I understood that's not nuclear ingenering .
I will do this way
Bevel
Tack preheat to red
Weld
Just 4 strike of hammer
Slow cooling
If it works ,ok if not I teach myself a lesson (don't waste time)

About the hammer I have one that is been welded on the striking face , isn't been heat treated so Is relatively soft ,is that dangerous ? I think yes but not as a to much hard one
Is right my though?
I found it on the field I definitely didn't weld that ,the red one yes is welded on the middle section

 

[Kent]

That's interesting what do you mean with
"Leaving a crater around the toe of the weld "
?

Essentially this may be tool steel ,carbon steel ,hardened steel ,or somewhat of steel .
We will never know what is it
What is the worst thing can happen ?
It will break trying to put together something?
Definitely I will never trust on a prybar or crow bar or this kind of tools to lift something where me or someone goes under it .
I opened my eyes , and I understood that's not nuclear ingenering .
I will do this way
Bevel
Tack preheat to red
Weld
Just 4 strike of hammer
Slow cooling
If it works ,ok if not I teach myself a lesson (don't waste time)

About the hammer I have one that is been welded on the striking face , isn't been heat treated so Is relatively soft ,is that dangerous ? I think yes but not as a to much hard one
Is right my though?
I found it on the field I definitely didn't weld that ,the red one yes is welded on the middle section

The weld bead and its below the surface penetration plain comes out from the parent metal. Fairly course grain in this area.

 

[Memmeddu]

So i welded together the chisel and the pry bar
I used 12 7018 rods 2,5mm
Than I capped using 3,25mm 6013 just because I have to grind flush tomorrow
Now the pry bar is under the sand cooling down slowly
I think that this thing will never break ,but whatever this is an experiment
First passes was around 140A than i put down to 115A because was to hot

I have welded together also a piece of equipment

 

[Memmeddu]

So i grinded the weld
Grinded the flat head
Now I have to clean it and do some paint job
I hammered the point because was to sharp for what I need and because I thought that was too dangerous

Someone said me that is more like a whale fishing device than a prybar