Item: Header Cooler
Construction Code: ASME Sec VIII Div-1 & API 661
Background:
Tube sheet cladded with SS316L (3mmm Min.)and Top/Bottom plate (SA-516 Gr.70N) has to be welded with tube sheet. Header require to be PWHT as per API 661 requirement. See attached Sketch for Joint Detail...
Dear All,
See attached drawing for welding of RF pad, where symbol of fillet with cross line mentioned. Pls give true representation and interpretation of this sign. Is is throat fillet size of 8x8 or leg length? What does this fillet weld symbol means...
Question:
Low Alloy material used for construction of Superheater which is P-4 as per ASME Sec IX, is it required to run production test plate?
As per PW-53 and Interpretation https://cstools.asme.org/Interpretation/InterpretationDetail.cfm?TrackingNumber=1112.
Fahad
Back Ground:
At the time of Bidding stage, End User has added statement, "Manufacturing of Surge Vessels as per ASME Sec VIII Div-1 2021 Code".
We have understanding to above statement as "Manufacturer has to fabricate surge vessel accordance with ASME Sec VIII Div-1 2021 code without ASME...
Question:
Tube to tube sheet welders (Qty 8 Nos) welded mock up on 15-11-2022 and qualifies as per listed acceptance criteria of QW-193. Thier continuity will expire on 15-05-2023. All welders continuosly welding of tube to tube sheets with in this 6 month tenure. The result of visual and PT...
Back Ground:
As per client requirement , actual PQR was welded with old material (SA-516 Gr.60) with new material (SA-516 Gr.70). Specimens for tensile and side bend was tested. Tensile were fracture with old material base metal and comply the requirement of QW-153. But 04 side bend specimens...
Back Ground:
A welder welded 10 tubes in which one tube rejected in visual test and two in macro examination but other 7 tubes accepted in visual, PT and macro examination.
Question:
Is welder qualified as per QW-193.2 " a minimum 05 tubes are required for qualification".
Reference...
Back Ground:
PWHT is not required by construction code ASME Sec VIII Div-1, however PWHT is required as per client requirement. This is alteration job in which 7 nozzles has to replaced with new one and one nozzle resize from 20 inch to 30 inch. So, only nozzle to shell joint has to be PWHT...
BackGround:
Mock up for tube to tube sheet is required by Client, so I qualified Procedure of tube to tube sheet as per QW-193.1 & QW-288. There were total 81 tubes. In addition of procedure, I also qualified 16 welders. The size of filler metal which was used was 1.6mm.
Question:
QW-193.2...
Happy Greetings!!!!
Construction Code: ASME Sec VIII Div-1 2019 Code
Referencing Code: ASME Sec IX 2019 Code
Manufactured item: Heat Exchanger
Joint Type: Groove 2mm + 1.5mm Fillet (Tube to Tube Sheet Welding)
Background: As Mock up as per QW-193 is not required by ASME Sec VIII Div-1 2019...
Dear All,
Please help me to resolve the below-mentioned issue.
"Welding of pulling lug (P-10H)UNS 31803 with Tube sheet (P-8) SS304 done with Wrong filler wire (ER316L), PQR qualified with wire ER2209, Impact test not required and construction code is ASME SEC VIII Div-1 2019, As per ASME Sec...
