Materials & Welding

Dear Experts,            One of the Manufacturer initially rolled the line pipe (API 5L) for the line item x ( dia 44" x 16.9 mm) with Voset Alpine plates, for the same manufacturer conducted Manufacturer Procedure Qualification test (MPQT) and the result found satisfactory. As there was not enough quantity of plates to complete the line item Manufacturer informed the line item x will be rolled after procuring the plates. Mean time manufacturer rolled for other line items of the same P.O with different sizes. Manufacturer received the plates from Sumitomo instead of Voest alpine to complete the partially rolled line item x ( dia 44" x 16.9 mm). In this case whether manufacturer shall conduct MPQT once again for the Sumitomo Plates for the line item x ( dia 44" x 16.9 mm) or elsae we shall conduct test unit only instead of MPQT. Please clear my doubt. -- G.Murali krishnan -- To post to this group, send email to materials-welding@googlegroups.com To unsub...

-----Original Message----- From: John Henning Sent: 27/04/2012, 6:42 pm To: materials-welding@googlegroups.com Subject: [MW:14158] RE: 14154] PWHT OF P 91 ALLOY STEEL MATERIAL. Stress corrosion cracking has been noted in as welded 91 material when it has been wetted. The concern is that the welds may have dew formation, or in some way be exposed to water. 91 in the as welded condition should be held indoors in temperature and/ humidity controlled conditions. An alternative is to keep in indoor storage but with the welded material maintained at a temperature above the expected dew point (by electric resistance pads most likely). The seven day thing is bit arbitrary and my personal take is that it is just to make sure that PWHT is performed in a timely manner. My experience with large amounts of welded 91 is that there has been no cracking even after extended time (a couple of months) in the as welded condition but we hold all as welded 91 in climate controll...

Hi I would be qualifying Inconel 625 overlay on AISI4130 material using SMAW process. Any precautions/ guidance in this regarding would be much appreciated Thanks & best wishes -- 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,   One of the vendor has to perform following welding as per job/drawing requirement.   Item: High Pressure Swiwell joint   Welding: Single V Groove Welding joining API 5L Gr.X 52 Pipe (13.5 mm thk.) To Hollow Pipe / Boss Made by EN-19 material.   Can anyone suggest welding rod selection & also welding procedure guideline (Welding Process, Preheat, PWHT etc.) ?   Regards   Hiren Sevak -- 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. Satish,   Please refer below extracts of UW-51 (a) of ASME Sec. VIII Div. 1 (2) A written radiographic examination procedure is not required. Demonstration of density and penetrameter image requirements on production or technique radiographs shall be considered satisfactory evidence of compliance with Article 2 of Section V.   Thanks & regards,     C. R. GANDHI --- On Mon, 4/23/12, Satish Patel Manubhai <satish19183@yahoo.co.uk> wrote: From: Satish Patel Manubhai <satish19183@yahoo.co.uk> Subject: [MW:14139] Thickness range for radiography techniqu qualification To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com> Date: Monday, April 23, 2012, 2:21 PM Dear all, Good afternoon. As per section V we have to go for procedure qualification before the start the radiography in job. Is there any group range for dia and thickness for the procedure qualification or we have to ...

Dear Experts Would you please suggest me a welding consumable for welding SS316L (pipe) and Super Duplex (UNS 32750) (pipe), the joint is for pipe support and not in service. regards, Himan -- 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, As per API 650, telltale hole shall be located substatially on the horizontal centerline. Could you please explain the reason. What will be the effect if the tellhole located at other locations? Regards. -- 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.Vino,   The requirement of Mr.Manoj john was related with the API 650 Tanks, offcourse temperature of -29 Deg Cent shall be considered and is very important for piping / Pipe line also.   Please refer to the fig: 2-1—Minimum Permissible Design Metal Temperature for Materials Used in Tank Shells Without Impact Testing Regards,     On Tue, Apr 24, 2012 at 5:16 PM, Vino Varghese < vinopvarghese@gmail.com > wrote: Dear Sir,   I was in an impression that the impact requirement is governed by Temperature, like - 29 Degree C below... but how does thickness affects the Impact Test?   Can you please through more light for the requirement of Impact Test based on thickness criteria?   Thanks & Regards Vino-Doha   On Tue, Apr 24, 2012 at 2:16 PM, narasimha murthy < jnm71269@gmail.com > wrote:   As per API 650 2.2.1.4 Shell plates are limited to a maximum thickness of 45 mm (1.75 in.) unless a lesser thick...

Stress corrosion cracking has been noted in as welded 91 material when it has been wetted.  The concern is that the welds may have dew formation, or in some way be exposed to water.  91 in the as welded condition should be held indoors in temperature and/ humidity controlled conditions.  An alternative is to keep in indoor storage but with the welded material maintained at a temperature above the expected dew point (by electric resistance pads most likely).  The seven day thing is bit arbitrary and my personal take is that it is just to make sure that PWHT is performed in a timely manner.  My experience with large amounts of welded 91 is that there has been no cracking even after extended time (a couple of months)  in the as welded condition but we hold all as welded 91 in climate controlled conditions.  I have not seen any empirical evidence that 7 days, 14 days, or 30 days makes any difference provided storage conditions are appropriate.   Note ...

Dear Experts, Can anybody  clarify me with literature. We have typical problem like this: We are making small cosmetic weld on castings - P1 materials ( WCC and LCC) Process used is SMAW. we use welding electrode E 7018-1. We use a preheat of 45-95 Deg C.Interpass being 300 deg C.PWHT is done @ 610 deg C. We had already demonstrated PQR with the parameters like electrode,current, preheat, interpass,and PWHT, the same are being excercised in the production weld also. Once after PWHT when we check hardness using portable (Equo-tip) hardness tester we find some welded spots shows high hardness which exceeds NACE  requirements (237 HB). We are facing similar high hard spot on material ASTM A 487- 4C material also. MANIVANNAN.P -- 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...

Dear Harish,  Weld strength reduction factor(W) for seamless pipe will be 1 , so, in my understanding there is no need to apply it for seamless pipe . Best Regards,   --- On Wed, 25/4/12, harsha bhat <harshnb@gmail.com> wrote: From: harsha bhat <harshnb@gmail.com> Subject: [MW:14151] Weld strength reduction factor(W) for seamless pipe To: materials-welding@googlegroups.com Date: Wednesday, 25 April, 2012, 10:51 PM Dear experts, As per 2010 edition of ASME 31.3 weld strength reduction factor (W) shall be applied to circumferential welds at elevated temperature. Hence under such case factor W  in accordance with table 302.3.5 shall be multiplied to SE for seamless pipes also in pipe thickness calculation. Can anyone please confirm if my understanding is correct or not. Regards, Harsha -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscri...

manhole roof nozzle weld may not permit acceptable RT due to the joint configuration, due to shadow by nozzle on film or artefacts from partial film contact on area of intrest. otherwise UT for class 1 test or optional MT for class 2 test reqmts. ------------------------------ On Tue, Apr 24, 2012 9:39 AM EDT SACHIN wrote: >Dear experts plz advice is it mandatory to take radiography for roof >manhole mozzle as per api 650 > >-- >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. -- To post to this group, send email to materials-wel...

Dear All,    We are going to do P91 piping fabrication,   as per client specification the stroage time after welding is limited to maximum 7 days for PWHT.  Is there any problem if it delays 10 days when  we are  following preheating procedure for welding as mentioned below:    Preheat at 200 degree C.  Min. 300 degree C. Max.  Inter pass temperature  250  to 300 degree C.  Cooling 20  to 80 degree C. after wleding  Post heating (extended heating) after cooling 300 degree C.     for four hours or 400 degree C. for three hours.   Thanks in advance for your response.\   Manoj.   -- 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 de...

Hai Sachin. See as per API 650, if it is WNRF, WNFF Joint then RT is required If it is a SORF joint then No RT is required. Pls refer your drawing and specification also. Regards, Balamurugan.M, QA/QC ( Sr. Engg ), L&T ECC, ODISHA On 4/24/12, SACHIN < sachin107@gmail.com > wrote: > Dear experts plz advice is it mandatory to take radiography for roof > manhole mozzle as per api 650 > > -- > 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. > -- To post to this group, send email to materials-...

hello darshan its Ajay here   your thickness limit will be 7.11 to 14.22 this is as per ASME sec IX......bcouse for LTCS u have to do the impact test............in dis case ur limit will me in lower side is 7.11 but limited to 2T in higher side........ jus go thorugh ASME sec IX chapter 4 clause no QW-403.6 QW-403.6 The minimum base metal thickness qualified is the thickness of the test coupon T or 5 ⁄ 8 in. (16 mm), whichever is less. However, where T is less than 1 ⁄ 4 in. (6 mm), the minimum thickness qualified is 1 ⁄ 2 T . This variable does not apply when a WPS is qualified with a PWHT above the upper transformation temperature or when an austenitic or P-No. 10H material is solution annealed after welding. On Thu, Apr 19, 2012 at 11:12 AM, Darshan Maheshwari < darshan.maheshwari@yahoo.com > wrote: Can any body suggest what thickness range is applied for qualifying a WPS (for thickness 7.11mm )  for LTCS piping material. Please provide r...

Dear experts, As per 2010 edition of ASME 31.3 weld strength reduction factor (W) shall be applied to circumferential welds at elevated temperature. Hence under such case factor W  in accordance with table 302.3.5 shall be multiplied to SE for seamless pipes also in pipe thickness calculation. Can anyone please confirm if my understanding is correct or not. Regards, Harsha -- 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.

ASME Sec VIII Div 1 does not state tolerance on vessel straightness which is customer specific. However, most customers specify the straightnee as 1mm per meter with max limit of 19mm for vertical vessels. Gopal Sent from BlackBerry® on Airtel From: prashant pansare <prashantpan_99@yahoo.co.in> Sender: materials-welding@googlegroups.com Date: Wed, 25 Apr 2012 20:30:53 +0800 (SGT) To: <materials-welding@googlegroups.com> ReplyTo: materials-welding@googlegroups.com Subject: Re: [MW:14149] alignment tolerance Dear Sir,   UW 33 describes about offset. My rquirement is regarding alignment of shells. For 60 Mtr. Long Column what is the alignment tolerance?   Regds, PSP  --- On Wed, 25/4/12, vincer michael <vincermichael@gmail.com> wrote: From: vincer michael <vincermichael@gmail.com> Subject: Re: [MW:14148] alignment tolerance To: materials-welding@googlegroups.com Date: Wednesday, 25 April, 2012, 10:15 AM To See UW-33, AND TAB...

Dear Sir,   UW 33 describes about offset. My rquirement is regarding alignment of shells. For 60 Mtr. Long Column what is the alignment tolerance?   Regds, PSP  --- On Wed, 25/4/12, vincer michael <vincermichael@gmail.com> wrote: From: vincer michael <vincermichael@gmail.com> Subject: Re: [MW:14148] alignment tolerance To: materials-welding@googlegroups.com Date: Wednesday, 25 April, 2012, 10:15 AM To See UW-33, AND TABLE UW-33 On Tue, Apr 24, 2012 at 7:58 PM, prashant pansare < prashantpan_99@yahoo.co.in > wrote: Dear All,   what is the maximum alignment tolerance as per ASME Sec VIII Div 1?   Thanx   PSP -- 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 thi...

To See UW-33, AND TABLE UW-33 On Tue, Apr 24, 2012 at 7:58 PM, prashant pansare < prashantpan_99@yahoo.co.in > wrote: Dear All,   what is the maximum alignment tolerance as per ASME Sec VIII Div 1?   Thanx   PSP -- 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. -- Thanks With Best Regards, D.VINCER MICHAEL +91-8264447884 -- 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 ...

Dear Prashant It is depend on thickness, for more details please see UW-33 Regards Mahesh From: prashant pansare <prashantpan_99@yahoo.co.in> To: mat wel <materials-welding@googlegroups.com> Sent: Tuesday, April 24, 2012 7:58 PM Subject: [MW:14145] alignment tolerance Dear All,   what is the maximum alignment tolerance as per ASME Sec VIII Div 1?   Thanx   PSP -- 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 Mohamad Please specify the ASTM specification,grade and component (such as valve body pipefittings etc..,) of the material for which weld repair is required so that we can suggest you. With regards Ramasamy On Tue, 24 Apr 2012 18:54:44 +0530 wrote > Dear All   Appreciate if someone can explain the procedure and limitation for weld repair or built up by weld of forging material due to machining error.    Does stress relieved (PWHT) shall be carried out after complete weld if the depth is below 10mm?   Thanks Ghafor Mohamad  -- > 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. ap...

Dear All,   what is the maximum alignment tolerance as per ASME Sec VIII Div 1?   Thanx   PSP -- 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 Sir,   I was in an impression that the impact requirement is governed by Temperature, like - 29 Degree C below... but how does thickness affects the Impact Test?   Can you please through more light for the requirement of Impact Test based on thickness criteria?   Thanks & Regards Vino-Doha   On Tue, Apr 24, 2012 at 2:16 PM, narasimha murthy < jnm71269@gmail.com > wrote:   As per API 650 2.2.1.4 Shell plates are limited to a maximum thickness of 45 mm (1.75 in.) unless a lesser thickness is stated in this standard or in the plate specification. Plates used as inserts or flanges may be thicker than 45 mm (1.75 in.). Plates thicker than 40 mm (1.5 in.) shall be normalized or quench tempered, killed, made to fine-grain practice, and impact tested. Regards,   J.N.Murthy   On Fri, Apr 20, 2012 at 8:59 PM, manoj john < manojacgnr@gmail.com > wrote: Dear All, Can anyone give information for the impact test requirement as per API 650 for carbon steel p...

Dear experts plz advice is it mandatory to take radiography for roof manhole mozzle as per api 650 -- 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.

If the consturction code is B31.3, the LTCS materail qualified range is 1/2T to T+6mm.   Pramodh From: sreedhar ch <sdchitturi@gmail.com> To: materials-welding@googlegroups.com Sent: Sunday, April 22, 2012 10:30 AM Subject: Re: [MW:14137] regarding- thickness range for LTCS piping material for WPS ASME Sec IX(QW 403.6) 7.11mm to 14.22mm, With Impact testing. Minimum Thickness of Base metal qualified is the thickness of test coupon or 16 mm which ever is minimum.   Sreedhar On Thu, Apr 19, 2012 at 11:12 AM, Darshan Maheshwari < darshan.maheshwari@yahoo.com > wrote: Can any body suggest what thickness range is applied for qualifying a WPS (for thickness 7.11mm )  for LTCS piping material. Please provide reference also.   Regards, Darshan Maheshwari. -- 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...

  As per API 650 2.2.1.4 Shell plates are limited to a maximum thickness of 45 mm (1.75 in.) unless a lesser thickness is stated in this standard or in the plate specification. Plates used as inserts or flanges may be thicker than 45 mm (1.75 in.). Plates thicker than 40 mm (1.5 in.) shall be normalized or quench tempered, killed, made to fine-grain practice, and impact tested. Regards,   J.N.Murthy   On Fri, Apr 20, 2012 at 8:59 PM, manoj john < manojacgnr@gmail.com > wrote: Dear All, Can anyone give information for the impact test requirement as per API 650 for carbon steel plate thickness for atmospheric storage tank. Thanks & Regards. Manoj  -- 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 p...

Dear All   Appreciate if someone can explain the procedure and limitation for weld repair or built up by weld of forging material due to machining error.    Does stress relieved (PWHT) shall be carried out after complete weld if the depth is below 10mm?   Thanks Ghafor Mohamad  -- 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 all, Good afternoon. As per section V we have to go for procedure qualification before the start the radiography in job. Is there any group range for dia and thickness for the procedure qualification or we have to go for all individual dia and thickness. Kindly advise and also give reference code for the same. Regards, satish patel

Dear friends, we use grafite with monel embeded gaskets for caustic 30% conc. at 140 C temperature lines, but frequently it leaks after few months in service (max. 6months), after opening the flange joints we found the gaskets were totally failed. The line material is Ni-200 with stub ends and lap joint flanges. Kindly suggest the appropriate gaskets to avoid frequent leakages from flange joints. (photos could not be attached due to lager sides) -- 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.

ASME Sec IX(QW 403.6) 7.11mm to 14.22mm, With Impact testing. Minimum Thickness of Base metal qualified is the thickness of test coupon or 16 mm which ever is minimum.   Sreedhar On Thu, Apr 19, 2012 at 11:12 AM, Darshan Maheshwari < darshan.maheshwari@yahoo.com > wrote: Can any body suggest what thickness range is applied for qualifying a WPS (for thickness 7.11mm )  for LTCS piping material. Please provide reference also.   Regards, Darshan Maheshwari. -- 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. -- To post to this group, send email to materials-welding...

D&H -SMA   for filling of defects in casting & for surfacing D&H-Lotherm 457.   Sreedhar On Wed, Apr 18, 2012 at 10:19 PM, Harish Kannepalli < harishkannepalli@gmail.com > wrote: Dear Experts,                      Please share some welding data on 13% Mn (Hadfield) steel. Like electrode, suppliers, welding parameters. regards, Harish. -- 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. -- 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...

Dear Mr. Darshan,   As per QW-403.6 & QW-403.8 of ASME Sec. IX, if PQR will be done on 6 mm. thk. P -1, G-1 material, your qualified base metal thk. range shall be minimum 6 mm. to max. 12 mm. Kindly check for PWHT- Normalizing.    Thanks & regards,     C. R. GANDHI --- On Thu, 4/19/12, Darshan Maheshwari <darshan.maheshwari@yahoo.com> wrote: From: Darshan Maheshwari <darshan.maheshwari@yahoo.com> Subject: [MW:14126] regarding- thickness range for LTCS piping material for WPS To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com> Date: Thursday, April 19, 2012, 11:12 AM Can any body suggest what thickness range is applied for qualifying a WPS (for thickness 7.11mm )  for LTCS piping material. Please provide reference also.   Regards, Darshan Maheshwari. -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to mater...

Dear All, Can anyone give information for the impact test requirement as per API 650 for carbon steel plate thickness for atmospheric storage tank. Thanks & Regards. Manoj  -- 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.

Can any one guide me to the following question. 1. Why we prefer charpy v notch impact test in ASME Sec VIII. 2.what are the limitations of izod test. 3.which code prefers izod test. 4.is PQR toughness test conduct izod test. 5.what is the value difference between the same. Send some code reference. Regards venkat trichy -- 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.

Gents,   Had small argument on this.   From my understanding the meaning of the above clause (Deposited weld metal properties) is the All weld tensile tests ie CQT.   Any one having different thought on this clause.   Is anyone having official interpretation for this clause.   Thanks & Regards,   K.Babu   -- 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 Harish   For welding 13-14% Mn Steels you can use Austenitic manganese steel : E18-8-6 type SMAW electrodes or FCAW wires. This electrode contains 0.1-0.4%C, 18%Cr, 8%Ni and 6% Mn. The weld deposits are work hardenable type. As deposited hardness=200HB, after workhardening= 47 HRC. Welding has to be done very slowly with controlled interpass temp. of 150 degrees Celcius max. Mostly the component is immersed in a water bath tub during welding to maintain the interpass temp. Also weld with low heat input, lower current settings. Weld stringer and short beads.   If you tell me the application i can give you the solution as i have welded plenty of Hadfield steels !   Regards   Prem Nautiyal  Cell: 9004063879 / 9769316004   From: Harish Kannepalli <harishkannepalli@gmail.com> To: materials-welding@googlegroups.com Sent: Wednesday, April 18, 2012 10:19 PM Subject: [MW:14124] 13% Mn steel Welding Dear Experts,         ...

Hi, Please find herewith the attached file might be useful to you. You should use NiFe based electrodes for SMAW welding (AWS A5.15 ENiFe-CI)   Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager German-Thai Boiler Engineering Cooperation Limited. Rayong Factory ; 379 Moo.6 Soi 8, Tambol Pananikom, Nikompattana, Rayong 21180 THAILAND Tel : +66 38 897 035-9 Ext. 137 Fax : +66 38 897 034 Hand Phone: 0066 892512282 From: Engr huzaifa shabbir <engr.huzaifa@gmail.com> To: materials-welding@googlegroups.com Sent: Thursday, April 19, 2012 1:38 PM Subject: Re: [MW:14127] suitables electrode used for cast iron DEAR FRIEND, IF YOU USED LOW HYDROGEN ELECTRODE FOR CAST FE 7& HIGH STRENGTH MATERIAL, THE WELD WILL CRACK OR MAY CRACK IN FUTURE THE MOST SUITABLE ELECTRODE FOR THIS TYPE OF JOINTS IS ANY HIGH PERCENT NICKEL ELECTRODE. FOR ANY QUERY U MAY CALL +923312041785 OR CONTACT ON engr.huzaifa@gmail.com REGARDS HUZAIFA QA/QC ENGR PEOPLE STEEL MILLS K...

As per ASME Sec.IX QW451.1 thickness of test coupon is 1.5mm to mm means the thickness qualified limit is 1.5mm (Minimum) and 2T(Maximum). In your case, If you use 7.11mm thickness specimen for PQR then the Thickness Qualified limit will be 1.5mm to 14.22mm.   Thanks & Regards, (Karthik) Karthikeyan.S QA/QC Manager German-Thai Boiler Engineering Cooperation Limited. Rayong Factory ; 379 Moo.6 Soi 8, Tambol Pananikom, Nikompattana, Rayong 21180 THAILAND Tel : +66 38 897 035-9 Ext. 137 Fax : +66 38 897 034 Hand Phone: 0066 892512282 From: Raghuram Bathula <raghurambathula@gmail.com> To: Materials & Welding <materials-welding@googlegroups.com> Sent: Thursday, April 19, 2012 3:09 PM Subject: [MW:14128] Re: regarding- thickness range for LTCS piping material for WPS what is your design code? As per ASME it will be T-2T, however for piping (B31.3) this range can be used if PTC's are provided for the thickness ranges as specified in Table 323.3...

what is your design code? As per ASME it will be T-2T, however for piping (B31.3) this range can be used if PTC's are provided for the thickness ranges as specified in Table 323.3.1, else it will be T to T+6mm Best regards On Apr 19, 10:42 am, Darshan Maheshwari < darshan.maheshw...@yahoo.com > wrote: > Can any body suggest what thickness range is applied for qualifying a WPS (for thickness 7.11mm) for LTCS piping material. Please provide reference also. > > Regards, > > Darshan Maheshwari. -- 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.