Materials & Welding

Dear Experts, Please reply with your valuable comments, details are as follows. Welding Process : FCAW Material : SA 516 Gr.70 N, 20 mm Thickness PWHT :  610  °  C  ±  10 °  C, @  120 Minutes Tensile, Bend, Macro & Hardness Values are Accepted. But in the Charpy Impact Test @  -28 ° C   , Average on WCL is 09 Joule In HAZ the average is 217 Joule. Filler Wire Details K-71T1-C1, AWS A5.20, 1.2 mm Diameter Impact Values (as per MTC) , Charpy V-Notch  @  -20 °  C, Avg. 54 J & Min. 27 J Thank You & Regards Williams P Wilson +968-94600828 QA/QC Engineer Please consider the environment before printing this message -- 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 di...

Dear Mr. Sachin,   The following info. required to get a solution for your problem.   1. Type of power source used, 2. Filler wire size, welding position, 3. Ampere, Voltage, Stick out used during welding, 4. Type of shielding gas and flow rate, 5. Nozzle opening diameter and travel angle, 6. Brand of the filler wire. 6. Type of process used - Semi-auto or, SPM or Robotic.   Also, follow the below given 15 ways to reduce the Spatter level:   a.   Do not use higher voltage for the ampere selected, b.   If it is 100% CO2, change it to mixed gas like 80 A+20 CO2, 90A+10CO2,  90A+8CO2 + 2O2,        86A+12CO2+2O2 or likewise,  c.   Globular mode of transfer generates more spatters even on clean metal.  Change over to Spray or        Pulsed Spray transfer, d.   Too much or too less a gas flow rate may induce high spatters or porosity, e....

Dear Eda, You can use Э-50А,УОНИИ13/55,РБУ-5,ЦУ-5 rod and kindly check the gas purity. Regards, Binit Kumar On Sat, Sep 17, 2022 at 4:40 PM Eda Bekar < eddabekar@gmail.com > wrote: Dear Experts, The rod and gas we use in our project are СВ08Г2С (russian norm) and M21(%80 Ar + %20 CO2) . We have a lot of porosity and spatter problem. Could you give an advise better than this gas and rod combination? Materials : C345-5,C255-4,09Г2С-15 Best Regards -- 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 on the web visit https://groups.google.com/d/msgid/materials-welding/937EC6BF-2A49-4929-8551-B6E4457E1006%40gmail.com . -- BINIT KUMAR +918717929495 ...

Greetings, Below here is major factors: 1. Mixture of Shielding gases (Or + N). 2. Cold Pass Techniques (second pass should be lesser heat input from root pass approximately 75% ). 3. Control heat input with normal root penetration and excess weld-metal.   4. Filler wire with minimum diameter to reduce heat input. Muhammad Babur Khan Sr. Welding Inspector  (CSWIP 3.2.2) Sent from my iPhone On 19 Sep 2022, at 9:33 AM, ahmad elsharkawy <ahmad.sharkawy88@gmail.com> wrote:

Could you please what happen after that and what is the parameter you used to pass the corrosion test? On Thursday, January 2, 2014 at 4:24:01 PM UTC+3 tan billy wrote: Dear Experts, I have try to qualified repair procedure  14'inch superduplex pipe 30 mm thickness(UNS32750) where using purging and shielding gas 98% Ar and 2% N2.Unfortunately I failed on the pitting  corrosion testing(35⁰C)5g/m2 weigh loss(test required 4g/m2)G48 method A. Original weld pass at 0gram weigh loss. Piting was found at side(near excavation area) and root weld where the side of test piece is more severe . Heat input for root around 1.2KJ/mm and the rest passes are 0.8-1.1kjmm. Filler wire used is ER2594.   a)Can you guys provide information for the purging usually used( I am using only span), suitable environment for welding superduplex?  b)Do we need to cut off the tip of the filler wire if it is oxidized(reused wire)? c) Can we use power brush for interpass cleaningexclude capping? d.) The...

what is the shielding gas THANKS & BEST REGARDS, KG.PANDITHAN, BE, IWE,  CSWIP 3.1, ISO 9712 Level 2 in VT, ASNT-Level II in PT,MT,RT & UT, LA ISO 9001-2015, International Welding Engineer.  CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Sat, Sep 17, 2022 at 4:40 PM Sachin Gonjare < sachinsgonjare@gmail.com > wrote: Dear Profesionals Please guide me how we can avoid/reduce welding spaters in GMAW process. Regards Sachin -- 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 on the web visit https://groups.google.com/d/msgid/materials-welding/CAOsVSySvAxzgFZnifjEdm87rYMRJs%2B2vbUZGpFmj-405K7tRvw%40mail.gmail.com . -- https://mate...

Dear Profesionals Please guide me how we can avoid/reduce welding spaters in GMAW process. Regards Sachin -- 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 on the web visit https://groups.google.com/d/msgid/materials-welding/CAOsVSySvAxzgFZnifjEdm87rYMRJs%2B2vbUZGpFmj-405K7tRvw%40mail.gmail.com .