Dear richard,
We have to use seperate grinding,cutting wheel for cs and ss matl to avoid contamination and rust formation on ss matl from cs.if you are already used you have apply nitric acid at that place to 30min.after that wash that area with water and chech nitric acid availability using ph paper.if colour get changes once again wash that area throughly.this will avoid corrosion formation of ss matl.
Regards,
s.m.kabeer ahamed
Quest-bangalore
--------------------------------------------
On Fri, 29/11/13, Richard robes <mech.processes@gmail.com> wrote:
Subject: Re: [MW:19406] Cutting & Grinding Disc Composition
To: materials-welding@googlegroups.com
Date: Friday, 29 November, 2013, 5:01 PM
Gent'sIssue has
been going on regarding an ncr and colleagues commenting
that there is no change in composition of CS and SS discs
but no document related to it, can anyone attach a document
proof regarding the issue.
RegardsRichard
On Fri, Nov 29, 2013
at 12:44 PM, José Luís Ferreira <jluis.nf@gmail.com>
wrote:
considering the new discs, there is no problem of
contamination, the problem of discs made to CS is that they
are not suitable for the hardness and strenght of the SS,
and thus becomes more expensive and less productive.
On Nov 28, 2013 1:34
PM, "Richard robes" <mech.processes@gmail.com>
wrote:
Dear Gents,
Please comment regarding the
issue,What is the composition of SS and CS
Cutting & Grinding wheels? Is there any problem if we
use Cutting wheel marked as for CS in SS Piping material? Is
there any material that can cause contamination and rust in
SS piping if we use CS cutting / grinding wheel?
RegardsRichard
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