Anonymous-0
Well-known Member
What rod would be good to weld hardened steel to cold rolled iron. I need to repair my mower drive shaft coupling. I had to remove a bad section of drive shaft tube. Thanks stan
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Anonymous-0
Well-known Member
How do you know its hardened? With a stick welder use 7018. Dave
teddy52food
Well-known Member
10018 or 308 stainless.
Anonymous-0
Well-known Member
A file will not cut it. Stan
Anonymous-0
Well-known Member
I found welding old disc blades that the weld would crack out as it cooled. I called a welding instructor who hunts on my land and he said preheat to dull red, weld with 7018. It worked.
I didn't think there was too much in the way of drivelines that was hardened... I'd suspect if you can't mark it... it's probably just case hardened.
If it's just cold roll, then a 7018 should be fine. If it's case hardened... you're going to weaken it anyway.
I'd just go with a 7018 and see what happens...
Rod
If it's just cold roll, then a 7018 should be fine. If it's case hardened... you're going to weaken it anyway.
I'd just go with a 7018 and see what happens...
Rod
trucker 40
Member
Like somebody said heat it red hot and weld it with 7018 or MIG.
To take hardness out of hardened steel you heat it red hot.Let it cool slow.It wont be hard where you heated it any more.7018 is about the best for welding things like that.MIG will work.There are other ways too.
To take hardness out of hardened steel you heat it red hot.Let it cool slow.It wont be hard where you heated it any more.7018 is about the best for welding things like that.MIG will work.There are other ways too.
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