Materials & Welding

  For PED CE‑marked vessels, ASME IX alone is not sufficient . Welding procedures must be qualified to EN ISO 15614‑1 (PED requirement) , even if the vessel design follows ASME VIII Div‑1. ASME IX procedures may be reused only if supplementary testing proves equivalence and the Notified Body approves   On Wed, 10 Dec 2025 at 17:51, Anandhapadmanabha pillaim < anandhapadmanabhapillaim1997@gmail.com > wrote: For ASME VIII Div. 1 designed but non-stamped vessels that fall under PED 2014/68/EU, welding procedures do not need to be qualified to ASME Section IX. According to PED requirements, the Procedure Qualification Record (PQR) must be qualified according to ISO 15614-1, and the qualification must be approved by a Notified Body. The Welding Procedure Specification (WPS) can be based on the design code (e.g., ASME VIII Div.1), but the PQR qualification must follow ISO 15614-1 for CE marking. In summary: For PED compliance, use ISO-qualified procedures approved by a Notified Body; ...

Dear Experts, May a manufacturer use welding procedures not qualified to ASME IX for ASME VIII Div-1 designed but non-stamped vessels also required PED 2014/68/EU CE Marking ? Thanks. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- 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 . To view this discussion visit https://groups.google.com/d/msgid/materials-welding/52052b03-b94c-42f9-8156-afe18417d088n%40googlegroups.com .

For ASME VIII Div. 1 designed but non-stamped vessels that fall under PED 2014/68/EU, welding procedures do not need to be qualified to ASME Section IX. According to PED requirements, the Procedure Qualification Record (PQR) must be qualified according to ISO 15614-1, and the qualification must be approved by a Notified Body. The Welding Procedure Specification (WPS) can be based on the design code (e.g., ASME VIII Div.1), but the PQR qualification must follow ISO 15614-1 for CE marking. In summary: For PED compliance, use ISO-qualified procedures approved by a Notified Body; ASME IX is optional if the vessel is not ASME-stamped. On Wed, 10 Dec 2025, 4:59 pm Surendar Gunasekaran, < surendarrgs@gmail.com > wrote: Dear Experts, May a manufacturer use welding procedures not qualified to ASME IX for ASME VIII Div-1 designed but non-stamped vessels also required PED 2014/68/EU CE Marking ? Thanks. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/1...

Dear expert,  please review the screenshot above. Is it correct? If so, could someone please provide a reference? Article 9 of ASME Section V does not mention this. Can anyone confirm? With regards Pradeep  -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- 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 . To view this discussion visit https://groups.google.com/d/msgid/materials-welding/CAD3Y_Ug421wDr0XsOy_TPCMxX%2Be8Hdj%2BCdMRxWWuGd4_ZOqqKQ%40mail.gmail.com .

Dear Mr. Pradeep, T he statement is essentially correct . I t is not a present Section V requirement but, it was  in the  earlier editions and is still preserved through  cross-references in other ASME sections.  The controlling clause is: ASME Section V– Article 9 (T-952  or T-953, depending on the edition). Typical wording is  edition-dependent and wording shift slightly between editions, which is why you may not see  the exact sentence  you quoted in your copy. ·    Viewing distance: The VT shall be conducted at a distance not greater than 24 in. (600 mm) ·    Lighting: Illumination shall be sufficient to provide a minimum of 15 foot-candles (≈160 lux)  for general examination and 50 foot-candles      (≈540 lux) for the detection of small  discontinuities. Later editions of Section V streamlined Article 9 , removing some descriptive text. The same  technical requirements are now referenced  rather than repeated. Many construction codes  restate the VT re...

Hi Friends, Refer the attached image, In this, The cover flange thickness is 69.8 mm & The Nozzle thickness is 20.4 mm.  the Nozzle is Set on on the Cover Flange with Full penetration Weld the groove is given on the Nozzle pipe. The Final Fillet weld Size is 15 mm. So may i use the WPS which Covers the thickness range from 1.5 to 20 mm? If not, Kindly explain why? Also Tell me the WPS Qualified with Heat treatment can be weld for the Job without Heat Treatment? Looking for your valuable Replies. Kindly Support. regards, A.Shivasankar -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- 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 . To view this discussion visit https://groups.google.com/d/msgid/materials-welding/6032dcdf-efef-437b-...

The joint between the cover flange and the nozzle neck is a groove joint. However, the maximum thickness qualified in the WPS (20.0 mm) does not comply with the nozzle neck thickness requirement (20.4 mm). Therefore, this WPS is not applicable to this joint. PWHT is an essential variable, and the approved WPS must be followed. That means if a WPS qualified with PWHT is used, PWHT shall be performed in accordance with the WPS.   Thanks & Best Regards, (Mr.) Hai, Tran Ngoc E-mail: ngochai228@gmail.com Telephone: +84-(0)977-881-880 Vào Th 2, 15 thg 12, 2025 lúc 13:14 Shivasankar A < shivasankar2593@gmail.com > đã viết: Hi Friends, Refer the attached image, In this, The cover flange thickness is 69.8 mm & The Nozzle thickness is 20.4 mm.  the Nozzle is Set on on the Cover Flange with Full penetration Weld the groove is given on the Nozzle pipe. The Final Fillet weld Size is 15 mm. So may i use the WPS which Covers the thickness range from 1.5 to 20 mm? If not, Kindly explain ...

Dear friend, Nozzle thickness 20.4mm, so your WPS thicknes must be cover 20.4mm. 20mm thick WPS not suitable to use, because 0.4 mm less thick . Heat treatment is essential variable for WPS. If you use with heat treatment WPS, you have to do heart treatment to job also. Regards  D.V.Reddy. On Mon, 15 Dec 2025, 9:14 am Shivasankar A, < shivasankar2593@gmail.com > wrote: Hi Friends, Refer the attached image, In this, The cover flange thickness is 69.8 mm & The Nozzle thickness is 20.4 mm.  the Nozzle is Set on on the Cover Flange with Full penetration Weld the groove is given on the Nozzle pipe. The Final Fillet weld Size is 15 mm. So may i use the WPS which Covers the thickness range from 1.5 to 20 mm? If not, Kindly explain why? Also Tell me the WPS Qualified with Heat treatment can be weld for the Job without Heat Treatment? Looking for your valuable Replies. Kindly Support. regards, A.Shivasankar -- https://materials-welding.blogspot.com/ https://www.linkedin.co...

Dear DV Reddy, T = base metal thickness t = weld metal thickness Did you WPS covers both thicknesses ? Thank you & Stay Safe!   KAVIN MURUGAM +60126159644 On Mon, Dec 15, 2025 at 3:44 PM venkateswara reddy Desireddy < dvreddy82@gmail.com > wrote: Dear friend, Nozzle thickness 20.4mm, so your WPS thicknes must be cover 20.4mm. 20mm thick WPS not suitable to use, because 0.4 mm less thick . Heat treatment is essential variable for WPS. If you use with heat treatment WPS, you have to do heart treatment to job also. Regards  D.V.Reddy. On Mon, 15 Dec 2025, 9:14 am Shivasankar A, < shivasankar2593@gmail.com > wrote: Hi Friends, Refer the attached image, In this, The cover flange thickness is 69.8 mm & The Nozzle thickness is 20.4 mm.  the Nozzle is Set on on the Cover Flange with Full penetration Weld the groove is given on the Nozzle pipe. The Final Fillet weld Size is 15 mm. So may i use the WPS which Covers the thickness range from 1.5 to 20 mm? If not, Kindly explain...

Dear, Mr, Reddy, Pl make WPS for 25 mm thk. which may cover always in all. Regards. R.C.DUTTA JINDAL . On Mon, Dec 15, 2025 at 1:21 PM kavin murugam < kavin.murugam@gmail.com > wrote: Dear DV Reddy, T = base metal thickness t = weld metal thickness Did you WPS covers both thicknesses ? Thank you & Stay Safe!   KAVIN MURUGAM +60126159644 On Mon, Dec 15, 2025 at 3:44 PM venkateswara reddy Desireddy < dvreddy82@gmail.com > wrote: Dear friend, Nozzle thickness 20.4mm, so your WPS thicknes must be cover 20.4mm. 20mm thick WPS not suitable to use, because 0.4 mm less thick . Heat treatment is essential variable for WPS. If you use with heat treatment WPS, you have to do heart treatment to job also. Regards  D.V.Reddy. On Mon, 15 Dec 2025, 9:14 am Shivasankar A, < shivasankar2593@gmail.com > wrote: Hi Friends, Refer the attached image, In this, The cover flange thickness is 69.8 mm & The Nozzle thickness is 20.4 mm.  the Nozzle is Set on on the Cover Flange with Full...

Dears,   Welder Qualification it take maximum and WPS range takes Pipe thickness.ASME  Sec ix    Thanks and regards,      S.KARUNAKARAN,         karunaqc@gmail.com       91-6382279754        On Mon, 15 Dec 2025, 10:51 kavin murugam, < kavin.murugam@gmail.com > wrote: Dear DV Reddy, T = base metal thickness t = weld metal thickness Did you WPS covers both thicknesses ? Thank you & Stay Safe!   KAVIN MURUGAM +60126159644 On Mon, Dec 15, 2025 at 3:44 PM venkateswara reddy Desireddy < dvreddy82@gmail.com > wrote: Dear friend, Nozzle thickness 20.4mm, so your WPS thicknes must be cover 20.4mm. 20mm thick WPS not suitable to use, because 0.4 mm less thick . Heat treatment is essential variable for WPS. If you use with heat treatment WPS, you have to do heart treatment to job also. Regards  D.V.Reddy. On Mon, 15 Dec 2025, 9:14 am Shivasankar A, < shivasankar2593@gmail.com > wrote: Hi Friends, Refer the attached image, In this, The cover flange thickness is 69.8 mm & ...

Inorder to cover dissimilar thickness welding, WPS has to cover the lower limit and upper limit, there is not upper limit if the WPS has been qualified for 38mm and Above. I have explained this on the basis of P No. 1, 3, 4, 5A, 5B,5C, 15E. For P-No. 8, P-No. 41, P-No. 42, P-No. 43, P-No. 44,P-No. 45,P-No. 46, P-No. 51,P-No. 52, P-No. 53,P-No. 54, P-No. 61, P-No. 62, and P-No. 81  there is no limitations on maximum thickness, provided the PQR has been qualified on a 6mm thickness. On Mon, 15 Dec 2025, 12:17 pm Ramchandra Dutta, < ramchandradutta.rcd@gmail.com > wrote: Dear, Mr, Reddy, Pl make WPS for 25 mm thk. which may cover always in all. Regards. R.C.DUTTA JINDAL . On Mon, Dec 15, 2025 at 1:21 PM kavin murugam < kavin.murugam@gmail.com > wrote: Dear DV Reddy, T = base metal thickness t = weld metal thickness Did you WPS covers both thicknesses ? Thank you & Stay Safe!   KAVIN MURUGAM +60126159644 On Mon, Dec 15, 2025 at 3:44 PM venkateswara reddy Desireddy < dvre...