Welding

Reggie.

I'm looking to weld a high carbon steel piece to a mild steel piece. What is the best rod to use?

I was thinking of using some 7018 rods due to the two separate metals.

blue5000

Have you tried your regular rods, sometimes they work, sometimes not?

If not, what you need are called disimiliar rods,
https://www.weldequip.com/312-dissimilar-electrodes.htm

Found a uk link, but should be available here too

Mad4simmental

May need to pre heat it with gas if you have it to.

Zr105

Dis-similar rods as said above, think they could be something like 29/9 as a code or something, not sure if 7018's are the same idea, but read lately that they are an easier rod to weld on te vertical with as the weld pool solidifys quicker than a 6013 so not blobs dropping off

Reggie.

Mad4simmental wrote: »

May need to pre heat it with gas if you have it to.

Was trying to avoid that if I could. Sometimes ya have to preheat then weld and then heat again

Mickey H

Reggie. wrote: »

I'm looking to weld a high carbon steel piece to a mild steel piece. What is the best rod to use?

I was thinking of using some 7018 rods due to the two separate metals.

A 29/9 rod should sort you out. Bear in mind that they're a bit dearer than the normal mild steel rods.

Farmer

Look out for the slag with some of those rods, it tends to fly off so eyes are vulnerable

Reggie.

Mickey H wrote: »

A 29/9 rod should sort you out. Bear in mind that they're a bit dearer than the normal mild steel rods.

Yeah they are €1.50 a rod but trying to avoid them if i can as I'll need around 150 rods or so for the job. Ya know yourself

Nekarsulm

Farmer wrote: »

Look out for the slag with some of those rods, it tends to fly off so eyes are vulnerable

Especially any rod with a high Chromium content, or hard facing. Just as the bead cools, and you open the mask to see how it looks, slag flies off with a "ping"
Eyes are hard replaced.............

Cavanjack

Any harm in asking what your welding?

Reggie.

Cavanjack wrote: »

Any harm in asking what your welding?

Top secret :P

Nekarsulm

Reggie. wrote: »

Top secret :P

New edge on the shear grab?:D

dzer2

Mig weld it Reggie if its not too big stick it in a trailer and I will do it before the tea

Reggie.

Nekarsulm wrote: »

New edge on the shear grab?:D

Be some grab to require 150 rods

Reggie.

dzer2 wrote: »

Mig weld it Reggie if its not too big stick it in a trailer and I will do it before the tea

Have both MIG and TIM here aswell as ARC but don't think the MIG will hold

Nekarsulm

Reggie. wrote: »

Be some grab to require 150 rods

You pranged your MOWAG, acting the maggot, and have to have it fixed before the CO finds out?

Reggie.

Nekarsulm wrote: »

You pranged your MOWAG, acting the maggot, and have to have it fixed before the CO finds out?

Jaysus want more than 7018 rods or MIG for armour plating

Nekarsulm

Reggie. wrote: »

Jaysus want more than 7018 rods or MIG for armour plating

Ah, sure, who would know?

Bit like the old dodge of running a "bead" of chewing gum "weld" on an awkward place. Lick of paint, and you'd never know........

Cavanjack

Mig will do it

Reggie.

Cavanjack wrote: »

Mig will do it

Are ya sure. Be far handier to MIG it but was told the weld wouldn't hold to the high tensile steel too well.

dzer2

Reggie. wrote: »

Are ya sure. Be far handier to MIG it but was told the weld wouldn't hold to the high tensile steel too well.

That's what I use to weld blades on loader buckets if you are afraid drill and fit with high tensile bolts

Reggie.

dzer2 wrote: »

That's what I use to weld blades on loader buckets if you are afraid drill and fit with high tensile bolts

Good to know
I'll take it it's hard ox steel ya mig welded

dzer2

Reggie. wrote: »

Good to know
I'll take it it's hard ox steel ya mig welded

I wouldn't know the strength but its hardened steel that is used.

Reggie.

dzer2 wrote: »

I wouldn't know the strength but its hardened steel that is used.

All cutting edges as far as i know are hard ox steel

I'll take it no edges fell off yet

dzer2

Reggie. wrote: »

All cutting edges as far as i know are hard ox steel

I'll take it no edges fell off yet

Nope
and 2 more on the way for repair during the week.