Thank you for feed back. Because I will do PWHT for A707 cl3 l5 . 23 mm thick Material, however in applicable code B31.8 it does not require PWHT. we had done twice our PQR however still the hardness fails. so my solution is to have PWHT.
I ask C-Mn because in B31,8 it only tells C-Mn material...
Dear Experts,
Please help. why does the ASME SEC 9, in there material list with correspond to P-no (parent number) & group Number, that some materials are not listed. what is the reason why does those material are not included in ASME SEC 9 QW-422
In my case.. Im using ASTM A707 it is not...
Dear Experts,
Please help. why does the ASME SEC 9, in there material list with correspond to P-no (parent number) & group Number, that some materials are not listed. what is the reason why does those material are not included in ASME SEC 9 QW-422
In my case.. Im using ASTM A707 it is not...
Hello all
Need your career advise.
I'm a licensed Mechanical Engineer from Philippines an Asia third world country, For 8 years I have been work in Middle east for Different Oil & Gas construction project as a Quality Inspector for Mechanical, Piping & Welding. I had also other certification...
please also noted that the purpose of WQT is verify the welders ability to do welding or soundness welding.... making PWHT is verify the PROCEDURE weldability which different from WPQT
Mates
Our project uses 2 code in WPS which qualified to ASME SEC9(for Piping) & AWS D1.1(for Structural)
My question is if welder is only qualified in AWS D1.1 for 3G position, can he do welding for ASME SEC9 Same 3G position & parameters (Dia, procecess,Thickness,F6 & Pno.) or vice versa...
Thank you mates..
@ gtaw (Structural)
in AWS D1.1 TABLE X1-2 & X1-1
only the CE is up to .38, however the still it lack
because my CE value is 0.46
@ weldstan (Materials
my smaw will be E7018-1H4R
@ metengr (Materials
Because most of new materials encounter in this project they used is non...
Mates.
Good day1
Please inquire how to calculate pre-heat temperature using only CE value regardless of thickness.
Any references in ASME can be use as guide or other particular book.
Thankyou
weldstan (Materials)
That is the hardest part because of client standard procedure to make separate qualification for GTAW & SMAW if the Thickness of test coupon is more than 10 mm
4.29 mm weld throat is too much for 5.56 mm nominal wall thickness.... please consider that it is fillet weld... thus 4.29 mm is impossible to achieved.
as experienced .. please make 3 pass for welding of fillet.... the weld throat for that is sufficient to withstand that pressure..
remember in...
in my opinion, you can use float trap because the concepts with steam and air is same... just make sure the financial cost imapacts in company.. or the availability of material.
bolt tighting torque value will depends on size of bolt & nuts your using regardless of hot or cold condition...
manufacturer has its value on data sheet or else you can refer to client specification..
Metengr....
the harndness VHN shall be below 250VHN however the test had exceeded to 280 for value HAZ.
I only used ER70S-2 Because the design temp is -18 only and i had experience passing it using x60 and same filler wire.
however because as client procedure than more than 10mm shall have...
Mates,
Please help. My PQR done was failed in hardness and impact test.
Details was
API-X60 Pipe(P1,Gr2)-16 inch Dia, 23mm Thick
Flange - A707 CL3 L5,(Not included in ASME sec 9 material grouping),16 inch Dia, 23mm Thick
GTAW-ER70S-2 -ROOT PASS & HOT PASS
SMAW-E7018-FILLING & CAP
CODE B31.8
NO...
