Nickel MIG Wire for Cast Iron?

S.D.L.

Member
Has anyone ever used the Royal 11-30 Bare Nickel and/or Royal 44-30 Premium Nickel/Iron/Mag. MIG wire from Crown Alloys to MIG weld cast iron? Thanks!
 
(quoted from post at 12:36:04 07/05/13) Has anyone ever used the Royal 11-30 Bare Nickel and/or Royal 44-30 Premium Nickel/Iron/Mag. MIG wire from Crown Alloys to MIG weld cast iron? Thanks!
have used Royal rod with my TIG...It is very good filler material. I always liked brazing cast iron, or gas welding it with cast iron filler & boraxo for a flux...Have Tigged some & had mixed results...but better than Arc welding it...I also Migged a little cast iron with plain old ER70S...and it is still holding.Good luck, Shawn
 
Torch and the square cast rod & flux. I have a spray torch I like, with cast powder. Both work good & machine with no hard spots.
 
There are some stainless rods and wire with the same expansion ratio as cast. Instead of nickel which contacts more than cast when cooled.
Can"t find the reference book any more however that sated which rods material.
 
(quoted from post at 21:10:35 07/05/13) Wanting to build up an area about 1"x1" on a cast iron exhaust manifold for machining.
Machine the square/round out of plain steel & braze it in place...this will create the least amount of stress in the part...2nd would be to gas weld the material on (cast iron rod & flux) with proper pre-heat & post weld cool down(think low & slow)....Shawn
 
What he said as the '2nd method' - peen the area around the welds after welding/brazing (stress relief) and then cover the part in a box of sand to cool out. For the 2nd method I'd use brass if the manifold doesn't get too hot or use a torch and cast rod & flux as others said.
 
I meant to ask, but forgot. Where do you all get your cast iron rod and which flux do you use for best results? Thanks!
 


SDL,

I get the cast iron rod from Tucker Valve

Seat co in texas. The best flux is from Superior

flux in cleveland oh.

Break a piece out of an old bath tub to make

the repair piece , very good cast iron. Do heat

the whole manifold to at least 1000 deg before

you weld, and heat 1500 and hold for 15 minutes

and very slow cool from 1500 to 1200 ( 30

minutes) then slow cool on down . The rate from

1500 to 1200 will make the cast very machinable,

if it chills in that temp range ,it will be

very hard and even carbide tooling doesn't

like it . high speed tooling won't touch it.

Below is a before and during repair of a

wauk manifold. Also a link to more of that

repair.

george


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195 waukesha manifold
 
WOW, that is amazing work!!! I've done a few manifolds as well, but nothing that bad. Very impressive.
 
I save old cast iron rings for small jobs, or order the rod thru the local welding supply.here is another source...http://www.tinmantech.com/html/cast_iron_welding_supplies.php
 

Jon,

Next time you are in this end of the country
stop in ,can show you many more disasters.

Many of the jobs come in with some flavor of
arc weld and failed, have to remove all that
garbage and do it with rod and flux.

http://imageevent.com/gmachine/manifoldandcastironrepair/twincitymanifoldrepair

The twin city was local when I fixed it ,was
sold at auction , went Mn.
link to many more repairs
 
LOL, Everyone has disasters. I could show you a few of those as well. I would imagine MD is Maryland? Where?
 

Jon,

18 miles north of where you were in aberdeen

60 miles south of where you were in harrisburg.

george
 

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