Cutting & Grinding Disc Composition
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Richard robes
Nov 28, 2013, 8:04:03 AM11/28/13
to material...@googlegroups.com
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?
Regards
Richard
Weaver, mark
Nov 28, 2013, 12:48:39 PM11/28/13
to <materials-welding@googlegroups.com>, material...@googlegroups.com
Once a grinding disc/buffing wire wheel is used on CS it is contaminated and should not be used on SS. Always segregate these tools and mark them accordingly or suffer the consequences. Good luck.
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hany alfy
Nov 28, 2013, 11:52:18 AM11/28/13
to material...@googlegroups.com
you have to use the Discs for SS for SS works otherwise it will be contaminated by carbon and starr rust The Difference is the same between CS and SS that is why the SS discs are expensive Regards, |
From: Richard robes <mech.pr...@gmail.com>;
To: <material...@googlegroups.com>;
Subject: [MW:19395] Cutting & Grinding Disc Composition
Sent: Thu, Nov 28, 2013 1:04:03 PM
|
-- |
yfer...@gmail.com
Nov 29, 2013, 1:43:34 AM11/29/13
to material...@googlegroups.com
CS grinding disc made of Silicon Carbide Si2C3 which prone to carbon contaminant to SS, while SS disc made of Aluminium Oxide Al2O3 that no worry to carbon contaminant
Regards,
Yan
From: hany alfy <hanyo...@yahoo.com>
Sender: material...@googlegroups.com
Date: Thu, 28 Nov 2013 08:52:18 -0800 (PST)
ReplyTo: material...@googlegroups.com
Subject: Re: [MW:19396] Cutting & Grinding Disc Composition
José Luís Ferreira
Nov 29, 2013, 3:44:15 AM11/29/13
to material...@googlegroups.com
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.
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Richard robes
Nov 29, 2013, 6:31:04 AM11/29/13
to material...@googlegroups.com
Gent's
Issue 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.
Regards
Richard
Raghuram Bathula
Nov 29, 2013, 11:15:58 AM11/29/13
to Materials-Welding
probably it can help you
On 29 November 2013 17:01, Richard robes <mech.pr...@gmail.com> wrote:
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 <jlui...@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.pr...@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
---
smkabeer ahamed
Dec 2, 2013, 2:35:05 AM12/2/13
to material...@googlegroups.com
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.pr...@gmail.com> wrote:
Subject: Re: [MW:19406] Cutting & Grinding Disc Composition
To: material...@googlegroups.com
Date: Friday, 29 November, 2013, 5:01 PM
Gent'sIssue has
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.pr...@gmail.com> wrote:
Subject: Re: [MW:19406] Cutting & Grinding Disc Composition
To: material...@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 <jlui...@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.pr...@gmail.com>
wrote:
Dear Gents,
Please comment regarding the
issue,What is the composition of SS and CS
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 <jlui...@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.pr...@gmail.com>
wrote:
Dear Gents,
Please comment regarding the
george....@gr.bureauveritas.com
Dec 2, 2013, 8:36:06 PM12/2/13
to material...@googlegroups.com
SS contamination by carbon steel tools or copper wires during arc strikes is a serious issue and not always considered
- best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
API 510 Inspector
I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS
Tel: +30 210 40 63 113/4
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04
(See attached file: Dilintas_George.vcf)
smkabeer ahamed ---02/12/2013 10:11:21---Dear richard, We have to use seperate grinding,cutting wheel for cs and ss matl to avoid contaminatiThis message contains confidential information. To know more, please click on the following link: http://disclaimer.bureauveritas.com
Richard robes
Dec 7, 2013, 6:05:53 AM12/7/13
to material...@googlegroups.com
Gent's,
Know that material used in CS shall not be used in SS by any circumstance, but need to know the composition of CS cutting or grinding disc, whether it contain any contamination causing composition.
Regards
Richard
prem nautiyal
Dec 7, 2013, 1:50:41 PM12/7/13
to material...@googlegroups.com
Hi Richard
Most grinding wheels are made of silicon carbide or aluminum oxide, both of which are artificial (manufactured) abrasives.
Silicon carbide is extremely hard but brittle. Silicon carbide grinding wheels if used for SS material, there are chances of Si pickup which affects the Ferrite Number..
Aluminum oxide is slightly softer but is tougher than silicon carbide. It dulls more quickly, but it does not fracture easily therefore it is better suited for grinding materials of relatively high tensile strength.
It is mostly used for SS material.
A
good fabricator will segregate the grinding wheels properly in their stores by proper color coding and issue the right wheel to the grinder man under strict control and monitoring.
Regards
Prem Nautiyal
cell: 9769316004
On Saturday, December 7, 2013 9:35 PM, Richard robes <mech.pr...@gmail.com> wrote:
Gent's,
Know that material used in
CS shall not be used in SS by any circumstance, but need to know the composition of CS cutting or grinding disc, whether it contain any contamination causing composition.
Regards
Richard
On Tue, Dec 3, 2013 at 5:36 AM, <george....@gr.bureauveritas.com> wrote:
SS contamination by carbon steel tools or copper wires during arc strikes is a serious issue and not always consideredbest regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
API 510 Inspector
I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS
Tel: +30 210 40 63 113/4
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04
(See attached file: Dilintas_George.vcf)smkabeer ahamed ---02/12/2013 10:11:21---Dear richard, We have to use seperate grinding,cutting wheel for cs and ss matl to avoid contaminati
From: smkabeer ahamed <sm_kabe...@yahoo.co.in>
To: material...@googlegroups.com
Date: 02/12/2013 10:11
Subject: Re: [MW:19423] Cutting & Grinding Disc Composition
Sent by: material...@googlegroups.com
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