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Re: [MW:36146] ASME Section IX – Can a 6G Qualified Welder Weld with Pipe Rotation?

By 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 ...
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Re: [MW:36134] SS 310 tubes to SS 316L

By Materials & Welding
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 .
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Re: [MW:36138] SS 310 tubes to SS 316L

By Materials & Welding
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 ...
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Re: [MW:36139] Re: Automatic welding machines for Pipeline Welding

By Materials & Welding
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...
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[MW:36106] Re: BS EN 9606-1 - WQT (Parent Material Group)

By 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                        ...
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