@weld Stan,
I corrected Senerio-3, which is If I used buttered PQR, Buttering with ER309LmMo 5mm and proceed with PWHT. After PWHT complete joint with E316L.
2nd, Use ERNiCrMo-3.
Please share me your technical advise.
@Augusto_Jofre
For weld deposit "t" as per QW-451.1.
For Supplementary...
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...
Dear Nicky,
Better to talk and convince Authorized Inspector by taking UT Thickness survey of different location with mapping.
Otherwise, put email to his AIS for better opinion.
Fahad
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
@david339933
We bid job 2022 at that time ASME Sec VIII Div-1 2021 code latest one.
So, as per your understanding, Client is right we have to involve A.I and certify vessels to meet ASME Sec VIII Div-1 2021 code requirements.
But, it was not agreed in contract documents. Just writing to...
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...
@karik87,
What is MDMT of this job to which you want to apply this PQR? As -40 °C is coldest temperature and it also qualifies warmer temperature so you can write the WPS at impact testing temperature -20 °C.
I have question, why third option Fusion line + 2 CVN test tested at -20 °C? If it...
@Avi Weld @Ethan18
Groove WPS with impact test can be use for welding of tube to tube sheet joint as ASME Sec IX gives provision on it.
Mock-up for tube to tube sheet only need when required by applicable construction code (ASME Sec VIII Div-II) or Client specs. Impact test exempted for 2.5 mm...
@Newbie2211
Preheating and PWHT requirements governs with construction code, tell what equipment you are looking for fabrication then i will answer you the with necessary references.
Fahad
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...
@weldstan
A welder qualified in 6G position shall be qualified for all positions including special position?
Is special position covers in all as per QW-461.9? just like tube to tube sheet welding?
Is any provision or interpretation given in likes of ASME SEC IX?
Pls reply and correct me...
@DekDee,
Can i qualify tube to tube sheet mock up with combination of filler wire sizes, the sequence of mock up welding as shown below;
1st pass (Root Pass) with fuse the tube i-e autogeneous weld.
2nd Pass (Hot pass) with 1.6 mm filler wire
3rd or 4th with 2.4 m filler size.
By...
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...
