Welding threaded bar to cast iron

[danman]

As the heading says,can it be done because my boss is needing to know an i don't know????
I don't think so but might be wrong,thanks Dan

 

[slim_boy_fat]

Try dissimilar [don't know the number for them vc] rods with MMA?

Edit: something like these https://www.weldequip.com/312-dissimilar-electrodes.htm

 

[TechnicAl]

You can never be certain but Nickel Iron rods should do it

 

[danman]

Cheers lads

 

[Bill Edwards]

Nickel rods for cast, don't use 312 (dissimilar). Probably they one and only thing they aren't good for.

 

[premmington]

Nickel rods or even TIG braze!

 

[awemawson]

Or Sifbronze brazing for a more predictable result

 

[Shox Dr]

Another vote for TIG brazing. Ive some SIF No8 rods, brilliant.

I've welded no end of dodgy stuff including cast iron, even cheap manhole covers.

It's fantastic for zintec coated items, where you don't want to remove the galv

 

[Chris Stevens]

As the heading says,can it be done because my boss is needing to know an i don't know????
I don't think so but might be wrong,thanks Dan

SIF phosphor bronze No8 tig brazing rod will do the job, but better still would be to drill and thread the rod into the cast part if possible.

 

[Kent]

Could you drill and tap the cast first?