Materials & Welding

  QW-122 – Pipe Welding Positions.  QW-122 defines the pipe welding positions used for qualification. Purpose of this clause: This paragraph only  defines the welding positions used in qualification. It does not state that a separate  WPS is required for each position . QW-303 – Limits of qualified positions and diameters.  QW-303.1 – Groove welds states that a welder or welding operator who passes a groove weld qualification test is qualified for  the groove weld, fillet weld, and tack weld positions within the limits shown in Table QW-461.9. The important point is that  position qualification belongs to the welder, not to the WPS . QW-461.9 – Performance qualification position limits. This table gives the qualification ranges. For groove welds on pipe: 1G qualifies for the 1G position only   2G qualifies for 2G & 1G ...

Refer API RP 582 Regards  Sent from Yahoo Mail for iPhone On Tuesday, August 11, 2026, 2:16 PM, hvala...@gmail.com < hvalaalpesh@gmail.com > wrote: Can anyone suggest suitable filler wires for welding of SS 310 tubes to SS 316L tube sheet?  Does lack of Mo in ER 310 filler wires makes them unsuitable for the use in hydro-carbon service? Can we use ER 309L Mo ? -- 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/2393ab33-b01f-4184-b4a7-75381dce4cban%40googlegroups.com .

If the operating temperature is high , I would seriously consider ERNiCr-3 (Alloy 82) rather than trying to solve the problem by moving from ER310 → ER309LMo. Nickel-alloy fillers are frequently used for difficult dissimilar-metal joints because they tolerate the chemistry gradient/dilution between different alloys and can provide a more forgiving weld-metal structure. This is especially relevant if PWHT or substantial thermal cycling is involved. Regards, Ashish Ranjan Save a tree...Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hardc opy. " Confidentiality Warning : This message and any attachments are intended only for the use of the intended recipient(s), are confidential and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other ...

Programmable orbital GTAW power source, minimum ~300–400 A, pulsed TIG, AVC, oscillation, programmable multi-level sequences, cold-wire feeder, water-cooled orbital heads, data logging, purge-gas control, and interchangeable heads covering approximately 34–324 mm OD. Regards, Ashish Ranjan Save a tree...Please consider your environmental responsibility. Before printing this e-mail message, ask yourself whether you really need a hardc opy. " Confidentiality Warning : This message and any attachments are intended only for the use of the intended recipient(s), are confidential and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email and delete this message and any attac...

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...