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I am looking for equivalent EN standard for ASTM B 221 Alloy 6351. a quick reply is highly appreciated.

actually two branch connections are there on either side of axis of header as it will have ultrasonic sensors in it.

As per customer spec ,10 mm production piece's final pass need to be welded with SAW process only so can the weld procedure be developed by above way with above two supporting PQR?

I have to design a 3" branch connection (OD 95 mm & 9.5 mm WT) on header of 24"OD & 12.7 mm WT. The branch connection is at 90 degree & 4.5" offset from longitudinal axis of header. The design code is ASME B 31.3. can any body suggest how to perform the design calc mathematically as...

I had a impact tested PQR (GTAW+SMAW) with P1G1 TO P1G2 material having a coupon thickness 6 mm with 3 mm GTAW & 3 mm SMAW.(Qualification as per ASME sec IX) so my base metal qualification is 3 to 12 mm with 6 mm GTAW & 6 mm SMAW. I had another impact tested PQR(GTAW+SMAW+SAW)with P1G1 TO P1G2...

pipe spool material is A106 gr B/A105. Process: GTAW+SMAW Wire:ER 70S2& E7018-1 I already welded a test piece using same wps & in lab for hardness as per Fig 2 of RP 0472.but customer is not accepting it by saying it does not meet sec 5 of RP0472.

One of my project requirement was to build a CS spool.NACE MR 0103 was involved in the specification I already build a spool which has got a supporting PQR without pwht.As per NACE MR 0103, welding of p1 materials needs to be done as per RP0472.Road map of RP 0472 gives 3 options.one is pwht...

Though the max limit of Mn is 1.7 for EH10K which is above the limit for A1.but in my qualified WPS/PQR i have checked up the Mn in SAW wire test certificatre.It is below 1.4 so it comes in A1 & Mn for EM12K which i am going to use has also Mn contains below 1.4, so i am within the essential...

Fig. 328.5.4D sketches (1) and (2). are typically 90 degree branch connections. The branch connection above is at 45 degree, will it requires a covering fillet weld as well?

yes. I have the copy of it.

can you distinguish these filler classification by example so that I can understand the supplementary essential variabe para QW 404.12.

I have a qualified SS PQR as follows with impact test Material: SA 312 TP 316L to SA 312 TP 316L(P8G1 TO P8G1) Process: GTAW with ARGON gas purging Consumable:ER 316L Filler wire position : 6G Thickness: 8.2 mm By using above PQR, I have developed new WPS with impact test to weld 12.7 mm thick...

I agree that PWHT is a essential variable.but why code has not kept any time constraints on PWHT below lower critical temp when impact is not involved.Then by this way if my PQR is qualified with 2 Hrs soaking time i can go for multiple PWHT cycles and my total soaking time of all cycles may go...

Sorry currently I can not provide sketch but I will try to explain it again. My bevel is on 1.5" Dia Nozzle,it's a set on 45 degree branch connection with full penetration single groove joint. As the nozzle is at 45 degree,designer has set a min weld deposite of 15 mm at acute side & 10 mm at...

This means where impact is not required I can use EM10K Filler wire with F7P6 EM10K Flux of any other brand other than that used in actual PQR?

My PQR is qualified in 1G position & I intend to weld in 1G position only. The joint described above is not a Fillet joint. It is a single bevel full penetration joint . The bevel is made on 1.5" nozzle & throat on acute side required is 15 mm. Based on this 15mm weld deposite requirement can i...

Is there any limit for additional PWHT time for cs material beyond PQR time if imact is not involved.

I have a impact tested weld procedure(GTAW+SMAW)qualified as per ASME SEC IX & ASME B 31.3 (P1G1 TO P1G2) the PQR coupon was of 12 mm thickness. the weld deposite by GTAW was 4 mm & by SMAW was 8 mm.So I guess base material (T) thickness qualified as per QW403.6 is min 12 mm to max 24 mm Now I...

Yes, PQR is qualified with ASME SEC IX & ASME B 31.3. The PQR is also qualfied with impact test.But the spool piece here does nor require imapact test.

Yes, the PQR is qualified as per ASME SEC IX & ASME B 31.3.