Cast-iron welding

[elams...@gmail.com]

Any advice for cast iron welding

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[Vishwas Keskar]

Pl contact consumable supplier He will guide you 

There are consumable available for Cast iron .

Pre heating and consumable are addressed data sheets 

Vishwas

IWE

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On 18 Dec 2024, at 4:39 PM, elams...@gmail.com wrote:



Any advice for cast iron welding

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[J Prinsen]

Proper metallurgical answer: don't weld

If one needs to weld anyway, then are 2 options:

1) High preheat 500 - 700 degrees centigrade, preferred in a furnace, welding with Acetylene Oxygen flame with special cast iron welding bars, slow cooling afterwards, risk of size tolerance issues

2) Cold, low input 2.5 mm SMAW process, with hammering the hot weld metal to reduce thermal stress in the HAZ , risk of cracking

Keep in mind that risk of failure is large

Good luck

Weld-Tech BV

Jurgen Prinsen (MSc/IWE)

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Van: "elams rajan" <elams...@gmail.com>
Aan: "materials-welding" <material...@googlegroups.com>
Verzonden: Woensdag 18 december 2024 11:25:15
Onderwerp: [MW:35346] Cast-iron welding

Any advice for cast iron welding

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[devi chitra]

Dear Friend,

Greetings of the day.

Cast Iron is normally not weldable as like Steel.

In some cases,you can use high nickel content electrodes for welding.Contact your Electrode Supplier.

Regards,

Devii

On Wed, 18 Dec, 2024, 4:39 pm , <elams...@gmail.com> wrote:

Any advice for cast iron welding

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[sridhar cn]

Dear Mr. Rajan,

Following steps will help to weld Cast iron successfully.

a. Preheat the CI to a min. of 250-300 deg C to avoid cracking tendency using Oxy fuel or LPG torches. Maintain 

    inter-pass temperature till the welding is complete.

b. For non machinable welding of CI, use LH electrodes like E 7018 , E 8018 C-1 with SMAW process.

c. Use stringer beads and avoid weaving. Use short beads and peening (for each run) to reduce the stresses during welding.

d. For machinable welding, ENi-CI (pure Nickel) or Ni-Fe (Nickel iron) could be used for both Grey and ductile cast iron.

    Both also have superior corrosion resistance properties. FCAW process with similar chemistry could be used as an alternative.

e. CI can be welded with SS electrodes like E 308 and E 309 type also effectively.

f.  Any cracks propped up during welding should be removed by grinding and rewelded as mentioned above.

g. Allow the weld and HAZ zone to cool slowly, possibly wrapping it in an insulation blanket like Asbestos cloth or covering 

    with dry sand. 

h. Use DP check at room temp. to check the final weld quality.

Hope the above details will help you to weld the CI without any defects.

C Sridhar.

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On Wed, 18 Dec 2024 at 16:39, <elams...@gmail.com> wrote:

Any advice for cast iron welding

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[Chuck Struble]

you could braze it...

To view this discussion visit https://groups.google.com/d/msgid/materials-welding/CAHo%3DYihc%2BCkidFuL6D8DyKzQJr-%2BCMVSs8-0xFf%2By0mi_rtBRA%40mail.gmail.com.

[Kannayeram Gnanapandithan]

1. Preheat joint area(other area, cover with mineral wool). 2. ENiCi or ENiFe-CI. 3. stringer bead. 4. peening is to be done on weldmetal immediately after deposition of every electrode. 5. Cover with mineral wool after completion of complete weld for slow cooling.

On Wed, 18 Dec 2024, 16:39 , <elams...@gmail.com> wrote:

Any advice for cast iron welding

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