Skip to main content

Re: [MW:21757] Notch Toughness Properties of WPQR.

By Materials & Welding
check heat input??, this electrode E7018-1 is suitable upto test temp -46 celsius

THANKS & BEST REGARDS
KG.PANDITHAN, AWS-CWI, CSWIP 3.1
CONSULTANT-WELDING & QUALITY


On Sat, Aug 30, 2014 at 12:33 AM, Perumal Govindan <perumalgovindan@gmail.com> wrote:
1. Check the electrode approvals and manufacturing date, manufacturing date should not be more than one year. If ok check backing/holding oven register that has been stored properly. check MTC of electrodes that confirms the impact test value requirements.
2.Check the interpass temperature measured and should not be more than 200 degree centigrade.
3. How much the heat input was measured. Should be less than 2.25 kj/mm/check the preheat temperature measured.
4. If 3.2 mm electrode was used during , should be ok.

On Thursday, August 28, 2014, tomy george <tomychalil1967@gmail.com> wrote:
> Hi,
>
> I think the reason is electrode selection. As stated above check the consumable impact test value. Recently we have tested S355 material, which we got excellent values. You may get good values with this type of electrode (Elga P62 MR )
>
> Regards,
> Tomy George
>
>
> On Wed, Aug 27, 2014 at 5:44 PM, C.Muni <cmkfc07@gmail.com> wrote:
>>
>> This grade is not suitable for the test temperature you indicated.Please check again.
>>
>> Regards,
>>
>>  Muniiandii.Ci MBA,
>> NDT Level II,
>> ISO 9001,14001 Lead Auditor,
>>
>> Mobile:99947 65591
>> Growth is the only evidence of life.
>>
>> On Tue, Aug 19, 2014 at 1:42 PM, 'CHINTUKUMAR GANDHI' via Materials & Welding <materials-welding@googlegroups.com> wrote:
>>>
>>> Dear Experts,
>>> Greetings of the day.
>>> I came to an issue in WPQR of P No. 1 Group 2 Base metal in CVN Impact testing of weld and haz. Design Code is ASME Sec. VIII Div. 1 Ed. 2013 & ASME Sec. IX Ed. 2013.
>>> Base Metal Thk. 25 mm. SA 516 Gr. 70
>>> PWHT: Normalizing at 920+/-10º C.
>>> Holding Period 65 Minutes.
>>> Welding Process SMAW (Manual)
>>> Electrode Used: 3.15 & 4.0 mm. E7018-1 (Impact tested in as welded condition).
>>> Position: 3 G Uphill (Stringer/ Weave Bead)
>>> CVN Impact test results of HAZ: 
>>> Test Temp. -57º C (Temp. reduction applicable)
>>> Specimen size: 10 x 5 x 55 mm.
>>> Values in Joules HAZ Top Side- 5, 19.5, 4 (Average 9.50)
>>> Values in Joules HAZ Bottom Side- 4.5, 4, 17.5 (Average 8.67)
>>> Values reqd. for sub size specimen: Individual min. 8 J & Min. Average 10 J.
>>> CVN Impact test results of Weld:
>>> Test Temp. -46º C (Temp. reduction applicable)
>>> Specimen size: 10 x 10 x 55 mm.
>>> Values in Joules - 9, 14.5, 8.5 (Average 10.67)
>>> Values reqd. for Std. size specimen: Individual min. 16 J & Min. Average 20 J.
>>>
>>> What shall be the reason of failure? Is electrode selection OK?
>>> Awaiting for your prompt favorable response at the earliest.
>>> Thanks & regards,
>>>
>>>
>>> C. R. GANDHI
>>>
>>> --
>>> 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.
>>> ---
>>> You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
>>> To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
>>> For more options, visit https://groups.google.com/d/optout.
>>
>> --
>> 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.
>> ---
>> You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
>> To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>
> --
> 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.
> ---
> You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>

--
Thank You and Regards
 
P Govindan
Mobile: +919643152414
Direct : +911294291200

--
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Comments

Post a Comment

Popular posts from this blog

Materails FAQs

By Materials & Welding
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...
21 comments
Read more

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

By Materials & Welding
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...
Post a Comment
Read more

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

By Materials & Welding
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, ...
Post a Comment
Read more