Materials & Welding

Good Afternoon, According to EN 9606-1,  Parent material groups are "Non-Essential", But need to record in the Welder Certificate as per Code Requirement. There is a statement " Welding with a filler material in one group qualifies the welder for welding with all other filler materials within the same group, as well as other groups, listed in Table 3, and welding on parent materials from groups 1 to 11".(@ Page 10). 1.My question is Group 1 Cover all Group 1 to 11? Thanks & Best Regards, AKHIL            SAC Accredited  Welding Inspector (Cert. No: 316877/2) SAC Accredited - Independent Testing Agency (ITA) Mobile:  +65 8453 3547, +66 994018820   || DID:  +65 6909 6535 email:  raiseita03@gmail.com   RAISE ENGINEERING PTE. LTD.  48, Hillview Terrace                        ...

Dear Sirs, Good day. As per API 1104, we are going to run PQRs soon; So, Please give your suggestion and comments for welding the following API 5L series of pipes with the selected Class of welding rods & Fillers : First, let me know if the selected AWS class are OK to proceed or not ? 1) API 5L Gr. X42 :  GTAW : AWS Class 5.18 ER70S-6 +  FCAW : AWS 5.20 E71T-1C 2) API 5L Gr. X65 : GTAW : AWS 5.28 ER80S-Ni1 + SMAW : AWS 5.5 E8018-C3   3) API 5L X70 :  GT : AWS 5.28 ER80S-Ni1 + SMAW : AWS 5.5 E9018M (OR) FCAW : AWS 5.29 E91T1-K2C  Also recommend me for welding parameters such as Amps, Volts, Gases, Preheat, Post Heat, Interpass Temps with site links to make these PQRs successful. Best Regards, Saravanan Sornam, Ansan-Si, S.Korea -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 ...

Mr. SS, You have not indicated the parent metal thicknesses to recommend the consumable sizes. For a lower thickness pre & post heating is not required. Towards welding parameters such as amps, volts, gases,  please refer to the technical literature obtained  from the manufacturers of the consumables. CS On Thu, 16 Jul 2026 at 22:37, sridhar cn < sridharcn305@gmail.com > wrote: Dear Mr SS, Your proposed consumables are generally in the right direction, but there are a few points worth correcting and  verifying,  particularly with respect to  strength matching and low-temperature toughness.  My comments as follows: 1. API 5L X42 : “GTAW” AWS A5.18 70S-6 + “SMAW” E7018 (or) “ FCAW” AWS 5.20 E71T-1C is suitable.                           If Ar/CO₂ gas is used...

Dear Akhil, Your statement from P1 to P11 is true for welders ability to weld & capable of having correct root penetration as well as fusion. but you need supporting qualified PQR established with correct consumables & Amp. Voltage Heat input. Hope my answer satisfies your query. Regards, Chetan Kapadia  Kapadia Consultants  Yahoo Mail: Search, organise, conquer On Mon, 20 Jul 2026 at 12:35, AKHIL MENON <akhil19951995@gmail.com> wrote: Good Afternoon, According to EN 9606-1,  Parent material groups are "Non-Essential", But need to record in the Welder Certificate as per Code Requirement. There is a statement " Welding with a filler material in one group qualifies the welder for welding with all other filler materials within the same group, as well as other groups, listed in Table 3, and welding on ...

EN 9606-1 qualifies on the filler material (the FM group). In most cases one FM group, for example FM1 will qualify to other FM groups – for FM1 also for FM2. See table 3 in 9606-1.   In theory FM1 filler material may be used for all parent material groups (1 – 11 as per ISO 15608). But you will never use a welder qualified to FM1 filler material (for carbon steel) to weld parent material group 8 (austenitic stainless steel).   The qualification test will be based on a qualified WPS – or a pWPS (that is also allowed). The welder, when using the issued certificate, shall weld within the range of qualifications for his certificate. So he cannot weld to a WPS qualified to for example group 8.1.   Med venlig hilsen Kristian Lund Jepsen M. Sc. (Mech. Eng.) Senior Chief Consultant 1101248 - Mechanical ...

Dear experts, My contractors wants to use approved 2G position WPS for production joints which in 5G/6g position other than 2G position and WQT for 6G position. References to ASME. Can we proceed to do that or do we need to use approved WPS in 6G/ALL positions? Regards, Sya -- 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/a2026e50-8b41-42a7-bd00-1852f82aa1ean%40googlegroups.com .

What is the weld process? cordially, Jay Poojary On Sat, 25 Jul 2026, 12:21 Dominant QC < dominantqc@gmail.com > wrote: Dear experts, My contractors wants to use approved 2G position WPS for production joints which in 5G/6g position other than 2G position and WQT for 6G position. References to ASME. Can we proceed to do that or do we need to use approved WPS in 6G/ALL positions? Regards, Sya -- 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/a2026e50-8b41-42a7-bd00-1852f82aa1ean%40googlegroups.com . -- https://materials-welding.blogsp...

Please correct it to " welding positions like 5G (or) 6G " Regret the typographical error.  CS ---------- Forwarded message --------- From: sridhar cn < sridharcn305@gmail.com > Date: Sat, 25 Jul 2026 at 21:16 Subject: Re: [MW:36109] APPROVED WPS IN 2G POSITION BUT PRODUCTION WANT TO DO 5G/6G POSITION USING ASME 2G WPS To: < materials-welding@googlegroups.com > Under ASME Section IX , it is acceptable to use a WPS qualified with a 2G PQR for production welds  made in 5G or 6G  provided the WPS remains within its qualified essential variable ranges. You do not need to qualify a separate WPS in 5G or 6G solely because production welding is in those  positions. However, the welders are to be individually qualified for the production welding positions like 5G and 6G.  Otherwise, a  contractor  cannot use them other than in the 2G p...

Noted. This is a short table to easily check what is needed for each Item: Item Qualification Production WPS/PQR 2G 5G or 6G Welder/WPQ 6G 5G or 6G Result ✅ Acceptable in principle ✅ On Mon, Jul 27, 2026 at 7:49 AM sridhar cn < sridharcn305@gmail.com > wrote: Please correct it to " welding positions like 5G (or) 6G " Regret the typographical error.  CS ---------- Forwarded message --------- From: sridhar cn < sridharcn305@gmail.com > Date: Sat, 25 Jul 2026 at 21:16 Subject: Re: [MW:36109] APPROVED WPS IN 2G POSITION BUT PRODUCTION WANT TO DO 5G/6G POSITION USING ASME 2G WPS To: < materials-welding@googlegroups.com > Under ASME Section IX , it is acceptable to use a WPS qualif...

Hi, you need to verify whether the supporting PQR for that WPS qualifies all required positions, the welding position used for PQR can be an essential variable for some welding processes. If the PQR was qualified only in 2G, it does not qualify the WPS for all welding positions. You must check the applicable essential variables for the specific welding process in ASME sec IX .  BR V.bharath On Sat, Jul 25, 2026, 1:51 PM Dominant QC < dominantqc@gmail.com > wrote: Dear experts, My contractors wants to use approved 2G position WPS for production joints which in 5G/6g position other than 2G position and WQT for 6G position. References to ASME. Can we proceed to do that or do we need to use approved WPS in 6G/ALL positions? Regards, Sya -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & W...

Dear Mr Kumar, For your applications: 1. Polysoude P6 + MU IV Open Head + Cold Wire —Suitable for SS 25 NB to 300 NB and 2–10 mm wall thickness. 2. AXXAIR SAXX 300 + Open Head—An  alternative with a user-friendly interface. Both brands are available in the commercial market and may cost between 20 and 50 lakhs, depending on the  configuration. Your 10 mm thick and 300 NB size requires  an open-head or  carriage-type  orbital system with a wire feed.   A closed head is  ideal  for thin-wall tubing. Equipment Configuration should have: Inverter orbital power source Open orbital welding head AVC (Arc Voltage Control) Torch oscillation Cold wire feeder Water cooling Weld data logger Oxygen analyser (for purge monitoring) Internal pipe purging system Remote pendant Weld procedure memory (at least 200 to 300 programs) Both systems are good for dairy, pharma...

Hai, Please note that welding positions for procedure qualification is a non essential variable. (in the Previous asme sec IX Editions, addition of position was a supplementary essential variable which is applicable only if toughness requirments applicable) So if you qualify the PQR in any positions will qualify all positions.(for the welding process like GTAW, SMAW, FCAW, GMAW & SAW). Regarding the performance qualifications, positions qualifications shall follow ASME section IX table QW 461.9. With Regards, SANDEEP RAGHAVAN On Tue, 28 Jul 2026 at 5:43 PM Kannayeram Gnanapandithan < kgpandithan@gmail.com > wrote: ...

Dear Mr. Suresh, For Pipeline Girth Welding, Lincoln Electric – STT mechanised pipeline systems. Fronius – CMT mechanised pipeline systems. CRC-Evans – Integrated automatic pipeline welding systems. Serimax – Premium offshore pipeline welding systems. are generally recommended. These companies work through project-based sales and engineering support  rather than stocking equipment  through conventional dealers.    C Sridhar.   On Tue, 28 Jul 2026 at 09:50, sridhar cn < sridharcn305@gmail.com > wrote: Dear Mr Kumar, For your applications: 1. Polysoude P6 + MU IV Open Head + Cold Wire —Suitable for SS 25 NB to 300 NB and 2–10 mm wall thickness. 2. AXXAIR SAXX 300 + Open Head—An  alternative with a user-friendly interface. Both brands are available in the commercial market and may cost between 20 and 50 lakhs, depending on the  configuration. ...