Materials & Welding

 ASME B31.3 refers ASME Sec.IX for WPS/PQR qualification. PWHT Soak time after Repair will be considered during original PQR qualification and when Charpy Impact tests are required, below snap shot of ASME Sec.IX applies. Normally in Pipe Mill, MPQ (Manufacturer Procedure Qualification) with welding & Heat Treatment will be performed including repair PWHT cycles during pipe production. Thanks & Regards J.Gerald Jayakumar 0091-8838619635 On Thursday, 29 January 2026 at 08:52:28 am IST, Babur Khan <mbabur.bwp@gmail.com> wrote: Greetings, Thank you for your kind response. In pur PQR, soaking time for repairs Welding not considered.  Muhammad Babur Khan Sent from my iPhone On 28 Jan 2026, at 8:48 AM, 'james gerald' via Materials & Welding ...

Hello, Dear Expert, I would appreciate your insights on the following question concerning heat input calculations for impact-tested WPS. The Qualification Code is ASME Sec. IX. Yes, there is an impact test. The contractor has submitted the WPS heat input, which is shown in the screenshot below. (The second last and last columns were added by me. Question: How do you calculate heat input? 1. Third Last Column: The contractor recorded the highest heat input from PQR on the WPS as it is. 2. Second Last Column: Heat input is computed by averaging the amperage, voltage, and travel speed. 3. Last Column: The calculation of heat input relies on the maximum amperage, voltage, and travel speed. Which method is the correct one for calculating heat input? Heat Input will be higher than from PQR with available variables.  Reference :  Table QW-253 Welding Variables Procedure Specifications (WPS) — Shielded Metal-Arc Welding (SMAW) QW-409.1 Increase in heat input shall be consdire essential variabl...

Hi, There are some noticeable portions in your below table for Heat Input. 1. Your contractor has provided average Heat Input but according to ASME Sec.IX , it is the maximum Heat Input. 2. In your Cap pass, Heat Input is very High since for cap pass you use 2.5mm electrode and the Travel speed will be relatively faster and the allowable Current ranges for 2.5mm electrodes as provided welding consumable manufacturer may not be in this limit. For GTAW & SMAW  process, the code ASME Sec,IX provides the below formula. Ways for representation of  Heat Input for each Pass (RooT, Hot/cold, Fill & Cap passes). You can use a Portable arc monitor (PAM) unit to measure Heat Input or use Tong tester for measuring Current & voltage and stop watch to measure Travel Speed. When charpy tests are required Heat Input is a supplementary essential variable. Way 1 As per ASME Sec,IX, you can mention only the maximum limit of the Heat Input for ach pass no minimum limit applies. Way2...

Dear Team, Does anyone have a bolt torquing procedure? Please share.   Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 -- 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/CAMSLg-6XE%3DVWXHcBd3jdiziRwyhjswr0QFTNtx1P4bvM%2BjLs3w%40mail.gmail.com .

Dear All, Please kindly advise which FCAW, SMAW filler wire/electrode need for welding of S460M -- Thanks & Regards Mohammed Tajuddin WELDING INSPECTOR CSWIP 3.1 Contact  0530833486 JUBAIL -- 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/CACZrEUaJAsEZ-Mq3SDeNgU%2BesORe7zdou_Ewgi11L6gTF8ZUnQ%40mail.gmail.com .

Dear Mr. Thajuddhin we can use  E81T1-Ni1 for FCAW and  E8018-G for SMAW  Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 On Mon, Feb 2, 2026 at 9:24 AM Tajuddin Mohammed < tajuddinjntu@gmail.com > wrote: Dear All, Please kindly advise which FCAW, SMAW filler wire/electrode need for welding of S460M -- Thanks & Regards Mohammed Tajuddin WELDING INSPECTOR CSWIP 3.1 Contact  0530833486 JUBAIL -- 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/CACZrEUaJAsEZ-Mq3SDeNgU%2BesORe7zdou_Ewgi11L6gTF8ZUnQ%40mail.gmail.com . -- https://materials-welding....