Skip to main content

Re: [MW:15727] Fwd: FW: RUSTED MATERIALS

Mr Kumar,

Initially check your specification for Rust Grading A/B/C/D  the go for necessary action
 

On Sat, Oct 20, 2012 at 3:24 PM, Mohamed Elsayed ( BTG) <MElsayed@ccc.ae> wrote:

You can see ASME Sec. II part A , you will find limit of allowances for
pitting (not  more than 12.5% of the Original/Nominal Thickness).
Thanks
Mohamed

> 0.8mm
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of HAREESH K V
Sent: Saturday, October 20, 2012 12:44 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:15719] Fwd: FW: RUSTED MATERIALS

Dear Mr.Sreenivas Rao,

In which construction code it is mentioned about the rejection above
0.8mm.

Please give the reference.

Thanking You,

Hareesh K V
+91-9447625012


On Fri, Oct 19, 2012 at 5:04 PM, G Sreenivas Rao <gsrinivasg3@gmail.com>
wrote:
> Dear Kumar
> if the material is badly pitted,  pitting isze and depth is more than
> 0.8mm then the materal is not acceptable in general,  if higher thick
> material, where thicknesss alloance ( more) permitted then this can be

> used by grinding , in case of Pressure part, rusted, pitted and less
> thick material are not acceptable.
>
> Regards
>
> GSR
>
> On Fri, Oct 19, 2012 at 12:01 AM, Kumar kerala <sk7920541@gmail.com>
wrote:
>>
>>
>> Dear forum members,
>>
>> Kindly be sharing my concerns about "deeply rusted materials "
>> (different sizes, thickness about 9.53mm). the appearance of the
>> materials are poor. the thickness is measured by UT gauge and found
>> in required limits. but the mill coating of materials are damaged in
>> most of the cases, which is the main issue...are these are really to
>> be rejected in client point of view ( elbows- WPB-234, A 106 pipes
>> etc...)...these materials were stored in poor conditions with
supplier...
>> expecting opinions fromm all corners...
>> NB: photos attached.
>> regards,
>> Kumar.
>>
>> --
>> To post to this group, send email to
>> materials-welding@googlegroups.com
>> To unsubscribe from this group, send email to
>> materials-welding+unsubscribe@googlegroups.com
>> For more options, visit this group's bolg at
>> http://materials-welding.blogspot.com/
>> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=1227
>> 87&trk=anet_ug_hm
>>
>> The views expressed/exchnaged in this group are members personel
>> views and meant for educational purposes only, Users must take their
>> own decisions w.r.t. applicable code/standard/contract documents.
>>
>>
>
> --
> To post to this group, send email to
> materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@googlegroups.com
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
> http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=12278
> 7&trk=anet_ug_hm
>
> The views expressed/exchnaged in this group are members personel views
and meant for educational purposes only, Users must take their own
decisions w.r.t. applicable code/standard/contract documents.
>
>

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to
materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at
http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&
trk=anet_ug_hm


The views expressed/exchnaged in this group are members personel views
and meant for educational purposes only, Users must take their own
decisions w.r.t. applicable code/standard/contract documents.


--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm

The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.





--
chichula mahesh kumar
+91 9704656060

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
 
 

Comments

Popular posts from this blog

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change.   Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...