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Participant

Join Date: Oct 2011
Posts: 2

Removal of Clad from Base Material

10/23/2011 12:35 AM

Gentlemen, I want to remove SS 316L Clad of 4mm from Base metal SA 516 gr. 70 of 80mm. Is there any machine available to do so? Also please inform me how to ensure the complete de-cladding of SS material.

Best regards of the day,

Sahil Khan

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Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
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#1

Re: Removal of Clad from Base Material

10/23/2011 6:37 AM

How about using an abrasive cutoff wheel to slit the cladding, and then just peel off the cladding?

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Active Contributor

Join Date: Mar 2011
Location: Pascagoula
Posts: 21
#2

Re: Removal of Clad from Base Material

10/23/2011 11:57 PM

What method was used in the cladding process?

What is the scope of the job? A fabricated vessel? Flat Stock Plate?

If you're not talking about very much plate, you'd probably be money ahead

to just start over with new base metal.

Ken

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Participant

Join Date: Oct 2011
Posts: 2
#7
In reply to #2

Re: Removal of Clad from Base Material

10/24/2011 3:32 PM

Dear Ken

It is roll bounded clad.

We are manufacturing vessel head (Hmispherical head).

Any suitable portable machine you would suggest for this job.

Sahil Khan

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Associate

Join Date: Aug 2011
Posts: 45
#3

Re: Removal of Clad from Base Material

10/24/2011 5:45 AM

Hi Sahil

This may not help you directly ,but I want to share related expirience.While working for L&T Powai,I came accros similar situation.MS scap vendors REFUSED to collect SS+MS clad sheet cut pieces.The reason being SS does not get melted along with MS,and removal of SS not possible economically.As a result a sizable lot remaind uncleared for long time causing house keeping problem.Finally we had to clear the same at lower rate-even lower than MS !!And what I lernt was ,some body at Kurla used planning machine to remove MS side !!

I do not know your requirement ,but you may try this ,depending on your quantity and application.

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Guru

Join Date: Nov 2010
Posts: 507
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#4

Re: Removal of Clad from Base Material

10/24/2011 9:04 AM

Centerless grinding (if its round).

Ron

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#5

Re: Removal of Clad from Base Material

10/24/2011 9:17 AM

Yes I would agree in using a small abrasive cut off wheel to cut through the cladding for removal if the cladding is sheet applied, but if it is composite clad you will have to grind down to apparent to carbon steel. Question, are you performing a corrosion testing to the cladding or is it installation of a part?

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Participant

Join Date: May 2011
Posts: 1
#6

Re: Removal of Clad from Base Material

10/24/2011 2:19 PM

We have removed cladding material from carbon steel by using a milling machine or a planner, in any event their will probably be a certain amount of grinding, followed by an acid test to determine if the stainless steel has all been removed

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Anonymous Poster (1); dblackshaw (1); Dilip Dombivalikar (1); Kenholl (1); ronclarke (1); Sahil Khan (1); Tornado (1)

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