Materials & Welding

Please I need your assistance:- I have Helium gas Pipeline 304L to be welded by ER308L ,having MDMT at -269 Degree Centigrade , but the thickness of my Pipe is 2.77mm , Which is exempted from the impact requirements from B31.3 Chapter-III, Table323.2.2 Column B, B-4, Notes -6, Impact test are not required when maximum obtainable charpy specimen has a width along the notch of less than 2.5mm. but my client is not ready to accept that condition/constraint of B31.3. he needs explanation that How the material thickness(2.5mm) will bear that MDMT at -269 Degree Centigrad., even Obtainable charpy specimen is not possible, but How to convince the client the material will have the properties at that temperature. Thanks & Regards Posting on behalf of: Amit Pahuja -- 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://materia...

Hello everyone, I have a few questions that I need help with please: 1. When developing weld procedures to weld pipe materials like P1 (A106 grade A, B, C, and API 5L X-41, X-46, and X-56) to the same or any P1 to P1 combination for ASME B31.3 application in an oil and gas production site for flow lines, I do not need Charpy impact testing for temperatures of -20F and above right? 2. What if I'm developing welding procedures to join API wellhead flanges (materials: 4130 welded to the same), is there any minimum temperature for Charpy impact requirement, in other words, if the temperature anticipated is going to be -20F and above, is Charpy impact testing required for this material. If Charpy is required and it is not at -20F, at what temperature is it required, or do I have to test for impact/toughness no matter what the temperature is for the 4130 material? 3. What if I'm developing a welding procedure to transition from API wellhead to ANSI line pipe (material: 4130 to A106 B...

Dear Team, For one of our project , we have received the comments on cooler drawing as follows   APPLICATION OF "CIRCULAIRE N°2 OF  21st JULY 1993" FOR SHELL AND TUBE SIDES APPLICATION OF "DECRET EXECUTIF N° 90-245 OF18 AUGUST1990" FOR SHELL SIDE   Any one of you aware of the precautions to be taken care in design with respect to above clause? Does anyone have extract of the above guidelines?     Thanks & Regards Praphulla

Dear Vishal First of ASME SEC VIII DIV-1 does not ask for Normalizing of forming part. In your case, Even  Code does not ask for PWHT also. Even if  PWHT is required as per UCL-34, code specify the same with caution notes as below Postweld heat treatment may be in the carbide-precipitation range for unstabilized austenitic chromium–nickel steels, as well as within the range where a sigma phase may form, and if used indiscriminately could result in material of inferior physical properties and inferior corrosion resistance, which ultimately could result in failure of the vessel. Hence in your case normalishing is neither recommended nor required. Best Regards Rajesh Patel Executive Engineer  - Materials Technology, QA/QC & Standards From:         VIshal Sapkale <sapkalevishalv@gmail.com> To:         materials-welding@googlegroups.com Date:         30.09.11 05:52 Subject:   ...

Dear Friends, If anybody have the detail about the miter cut & angle detail from the DNV code please send me the detail. here we have  in offshore pipeline we have 30 degree angle miter joint . Material;API 5L X65, dia:48 inch. thickness;20 mm -- Thanks & Regards Antony Jenis Offshore Sr.Surveyor / Representative, GERMINSCHER Lloyd-NOBLE DENTON IRAQ CRUDE OIL EXPANSION PROJECT,IRAQ OFFSHORE, LIGHTEN DSV, ORANDA-1 UAE Mobile No: 00971505624002      -- 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/ 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.

Dear Mr. Vishal,   Normalizing   316 may induce phase transformation, reduce corrosion resistance and may  sensitise this too. This is a complex problem.   S.N.Bagchi.   -- 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/ 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.

Hi Pradip / Rajagopal / Nitin, Thanks for your prompt advise. You are correct I have used E8016-C2 / E8018-C2 with  Ø 3.2mm (1/8") electrodes.  To share the additional information, the applied preheat was 160°C (continuously maintained by induction coils), max. IPT was 300°C and heat input ranging between 1.5 to 1.8kJ/mm. All mechanical tests / NDE comply with ASME VIII Div 1 with CVN values well above 110J. I have already checked the based material hardness which is below the specification limits < 197HBW. And the re-test of the cap HAZ revealed the nearly the same values ~ 270HV10. Given the preheat, max. IPT, heat input and compliance of mechanical tests / NDE, I am wondering what could be the likely reason.  Any more thoughts or do I need to carry on temper bead technique to get the hardness reduced OR a PWHT for 10.97mm wall thickness? Thanks & Regards Mrithyunjay On Fri, Sep 30, 2011 at 10:44 AM, pgoswami < pgoswami@quickclic.net > wrote: Hi Mrithyunj...

Hi Mrithyunjay,   If sour service requirements i.e MR-0103, is applicable then the maximum allowable hardness is  22HRC (237HBW or 248HV 10)   Several grades of 3.5% Nickel steel is accepted in ASME Code. If you look carefully in Sec-II ,Pt-A, Grade D has maximum "C" restriction of 0.17%, while for grade E & F this limit is 0.20%. The compositional limits for all other alloying elements are  identical for all 3.5% Ni grades.   The default SMAW welding electrode (assuming this was the weld process used )  for this grade of 3.5% Nickel steel is E-8016/8018-C2 (Max C -0.12%).When hardness restriction is imposed then welding electrodes could be classified as E-7016/7018-C2L (max C-0.05%).   SFA 5.5 ,Annex-A elaborates the philosophy. If  the scenario is such that:- PWHT is not required as per design code or project specifications  low temperature notch toughness is to be met   hardness...

-- Dear Experts, We have Clad plate (SA516 Gr.70 thk 18mm +SA 240 TP 316L thk.4mm). We formed dished end from that plate. normally we do normalizing for the thk above 16mm dish. so can anyone tell me whether we can normalize the dished endof thk 18+4mm. If yes then why? and if not, why? Regards, Vishal -- 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/ 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.

go through the attachment, it may help you -- Devang Majithia Mechanical Engineer(Inspection) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Please don't print this e-mail unless you really need to. Save a tree if possible. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ########################################################################## # Legal Disclaimer : mail.gnfc.in # # ------------------------------------ # # This message may contain confidential and/or privileged information. # # If you are not the addressee or authorized to receive this for the # # addressee, you must not use, copy, disclose or take any action based # # on this message or any information herein. If you have received this # # message in error, please advise the sender immediately by reply e-mail # # and delete this message. ...

your assumpyion is coorrect ,just reduce the pre heating time    -- Thanks And Regards, Nitin R. Patil B.E.(Mechanical) Mobile No-8087065569 -- 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/ 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 have to identify heat number and lot number of all these plates, and then decide number of tests.   BR   HWCai Sulzer   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Pieper QSI Sent: Thursday, September 29, 2011 12:40 AM To: materials-welding@googlegroups.com Subject: RE: [MW:12575] Tension Test Requirement for SA 283 Gr.C plates   It seems to me that when every plate has similar heat and plate number they will be produced from a coil, especially when the thickness is 6 mm.   Met vriendelijke groeten / Best Regards   Herman Pieper   Pieper Quality Support & Inspection Phone: +31 (0)521 380083 Fax:     +31 (0)84 7539225 Cell:     +31 (0)6 51691215 www.pieper-qsi.nl   Van: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Namens asad azmi Verzonden: woensd...

Dear Mrithyunjay, For the 3.5% Nickel steel, it is client to say what hardness they want. Nace requirement is 248 HV10. The post heating of 350 Deg.C does not seem to have much impact on HIC testing. Thanks and Best regards, K.Rajagopal On Thu, Sep 29, 2011 at 9:09 AM, mrithyun jay < mrithyun.j@gmail.com > wrote: Hello Everyone, Currently I am qualifying a welding procedure for a pressure equipment which involves 3.5% Nickel steel. The design code is ASME VIII Div 1, the query is what is max. permitted HAZ hardness for this material. I have got two indentations 278 and 280 vickers 10kg in cap HAZ, whilst the others are well below 250HV10. WT of the coupon was 10.97mm and I have done a post heating at 350°C for 2 hours (assuming it would be beneficial to address HIC). I haven't done any PWHT. NB: Client is not sure of the permitted max. hardness, from memory - being a ferritic steel, I would assume max. permitted is 250 for NACE applications. I would like a confirma...

Hello Everyone, Currently I am qualifying a welding procedure for a pressure equipment which involves 3.5% Nickel steel. The design code is ASME VIII Div 1, the query is what is max. permitted HAZ hardness for this material. I have got two indentations 278 and 280 vickers 10kg in cap HAZ, whilst the others are well below 250HV10. WT of the coupon was 10.97mm and I have done a post heating at 350°C for 2 hours (assuming it would be beneficial to address HIC). I haven't done any PWHT. NB: Client is not sure of the permitted max. hardness, from memory - being a ferritic steel, I would assume max. permitted is 250 for NACE applications. I would like a confirmation from the group members, whether my assumption is correct? Thanks everyone Mrithyunjay. -- 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-we...

Hi David,   Please recall today's discussion on this subject. ASME Sec-IX is yet to assign any P No to this steel. Some authentic references on nominal composition and mechanical properties are available in this attachment.   This material is accepted for design and construction in Sec-VIII, DIV-2 code, through code cases ,i.e CC-2477 (approved June,2005), reapproved  as CC-2594 ,Nov-2007. ASME imposed some restrictions on this steel, e.g:- thickness of plates not to exceed 20 mm (0.79 in) max copper in the plate -0.20% Vanadium, 0.10-0.20% design temperature not to exceed 150 deg F(65 deg C) PWHT Temperature range-985-1040 deg F(530-560 DegC),Minimum holding time 1/2 hr(30 min) at this temperature. You may find more details in the code case.   Usually European consumable manufacturers ,ESAB, Bohler Thyssen or Metrode should be in a position to offer the recommended welding produc...

It seems to me that when every plate has similar heat and plate number they will be produced from a coil, especially when the thickness is 6 mm.   Met vriendelijke groeten / Best Regards   Herman Pieper   Pieper Quality Support & Inspection Phone: +31 (0)521 380083 Fax:     +31 (0)84 7539225 Cell:     +31 (0)6 51691215 www.pieper-qsi.nl   Van: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Namens asad azmi Verzonden: woensdag 28 september 2011 16:29 Aan: materials-welding@googlegroups.com Onderwerp: Re: [MW:12573] Tension Test Requirement for SA 283 Gr.C plates   SA 20 is not applicable here.   On Wed, Sep 28, 2011 at 2:10 PM, Bathula Raghuram (Mumbai - PIPING) < R.Bathula@ticb.com > wrote: One tension test coupon shall be taken from each plate-as-rolled (para 11.1.1 of SA20).   Note: plate-as-rolled— the quantity of plate product rolled at one time, either from...

it is, SA283 cross refers to SA 20 On Wed, Sep 28, 2011 at 7:58 PM, asad azmi < azmiasadayub@gmail.com > wrote: > SA 20 is not applicable here. > > > On Wed, Sep 28, 2011 at 2:10 PM, Bathula Raghuram (Mumbai - PIPING) > < R.Bathula@ticb.com > wrote: >> >> One tension test coupon shall be taken from each plate-as-rolled (para >> 11.1.1 of SA20). >> >> >> >> Note: plate-as-rolled— the quantity of plate product rolled at one time, >> either from an individual slab or directly from an ingot. >> >> >> >> From: materials-welding@googlegroups.com >> [mailto: materials-welding@googlegroups.com ] On Behalf Of asad azmi >> Sent: Wednesday, September 28, 2011 3:59 PM >> To: materials-welding@googlegroups.com >> Subject: [MW:12567] Tension Test Requirement for SA 283 Gr.C plates >> >> >> >> Dear All, >> >> >> >> Greetings. >...

SA 20 is not applicable here.   On Wed, Sep 28, 2011 at 2:10 PM, Bathula Raghuram (Mumbai - PIPING) < R.Bathula@ticb.com > wrote: One tension test coupon shall be taken from each plate-as-rolled (para 11.1.1 of SA20).   Note: plate-as-rolled— the quantity of plate product rolled at one time, either from an individual slab or directly from an ingot.   From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of asad azmi Sent: Wednesday, September 28, 2011 3:59 PM To: materials-welding@googlegroups.com Subject: [MW:12567] Tension Test Requirement for SA 283 Gr.C plates   Dear All,   Greetings.     As per MTC for the plates material - SA283GR C,  for a single Heat number( 10K22884)  total 15 Nos of plates are supplied having plate no. 15942    Description of Goods- Hot rolled steel plates with sheared edges. Plates are in Non Heatreated  condition.   MTC is showing only  2 tension test results.   ...

thickness of the plate is 6mm.   these are seprate rolled plates.   Regards On Wed, Sep 28, 2011 at 2:17 PM, Pieper QSI < pieper-qsi@kpnmail.nl > wrote: Dear Mr. Azmi,   What is the thickness of the plate material, and are these separate rolled plates or manufactured from coil? In case of production from coil a minimum of 2 tensile specimens need to be tested for each coil, so in this case 2 specimens would be acceptable. See note 1 chapter 3.2 of SA283.   Met vriendelijke groeten / Best Regards   Herman Pieper   Pieper Quality Support & Inspection Phone: +31 (0)521 380083 Fax:     +31 (0)84 7539225 Cell:     +31 (0)6 51691215 www.pieper-qsi.nl   Van: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] Namens asad azmi Verzonden: woensdag 28 september 2011 12:29 Aan: materials-welding@googlegroups.com Onderwerp: [MW:12567] Tension Test Requirement for SA 283 Gr.C plates   Dear All,   Greetings.     As...

Dear All, Regarding DHT (Dehydrogen heat treatment ) of PQR, I have P4 to P4 PQR with following DHT Heat treatment temperature :- 350 degree C. Holding time- 4 Hrs (Time Required by client) Above DHT requirement as per client specification, but i want use this PQR for different job where no any criteria of DHT requirements, so it is possible to use following DHT cycle Heat treatment temperature :- 350 degree C. Holding time- 1 Hr     Please shear your valuable guidance/Experience for above subject Regards Vijay Katkar -- 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/ 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.

Dear experts   Can some body advice which welding consumable grade to be used for welding 1B grade castings ( ASTM A-890-1B , CD4MCuN)   Thanks a lot for your inputs in advance.   Regards Fredric Prabu

Dear Mr. Azmi,   What is the thickness of the plate material, and are these separate rolled plates or manufactured from coil? In case of production from coil a minimum of 2 tensile specimens need to be tested for each coil, so in this case 2 specimens would be acceptable. See note 1 chapter 3.2 of SA283.   Met vriendelijke groeten / Best Regards   Herman Pieper   Pieper Quality Support & Inspection Phone: +31 (0)521 380083 Fax:     +31 (0)84 7539225 Cell:     +31 (0)6 51691215 www.pieper-qsi.nl   Van: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] Namens asad azmi Verzonden: woensdag 28 september 2011 12:29 Aan: materials-welding@googlegroups.com Onderwerp: [MW:12567] Tension Test Requirement for SA 283 Gr.C plates   Dear All,   Greetings.     As per MTC for the plates material - SA283GR C,  for a single Heat number( 10K22884)  total 15 Nos of plate...

One tension test coupon shall be taken from each plate-as-rolled (para 11.1.1 of SA20).   Note: plate-as-rolled— the quantity of plate product rolled at one time, either from an individual slab or directly from an ingot.   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of asad azmi Sent: Wednesday, September 28, 2011 3:59 PM To: materials-welding@googlegroups.com Subject: [MW:12567] Tension Test Requirement for SA 283 Gr.C plates   Dear All,   Greetings.     As per MTC for the plates material - SA283GR C,  for a single Heat number( 10K22884)  total 15 Nos of plates are supplied having plate no. 15942    Description of Goods- Hot rolled steel plates with sheared edges. Plates are in Non Heatreated  condition.   MTC is showing only  2 tension test results.   Please cla...

Dear All,   Greetings.     As per MTC for the plates material - SA283GR C,  for a single Heat number( 10K22884)  total 15 Nos of plates are supplied having plate no. 15942    Description of Goods- Hot rolled steel plates with sheared edges. Plates are in Non Heatreated  condition.   MTC is showing only  2 tension test results.   Please clarify whether only two tension test are acceptable OR there shall be 15 nos of tension test for 15 plates.( 1 tension test for each plate)   Thanks & Regards   Asad Azmi -- 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/ 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.

Dear Asif Its very critical matril and care shoud be for preheating,postheating and strss relieving.For you,s comfor i am attaching a complete method statement forfabrication of P91 mterial   Thanks   Mumtaz             On Tue, Sep 27, 2011 at 9:11 AM, ASIF < asifdme@gmail.com > wrote: Dear experts! Project : Solar Power Plant Construction Code ASME B31.1 ASME Sec IX PWHT Requirement - SA 335 P91 or P no. 5B Group 2 material is not included in 132 Para and Table of B31.1, and also, ASME Sec IX para QW-407 do not mention this material group. Client Specification do not mention this requirement separately Please advise! do we need to go for PWHT ? -- 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/ The views expressed/exchnaged in this group are m...