Materials & Welding

5.2.2 Combination of WPSs. A combination of qualified and prequalified WPSs may be used without qualification of the combination, provided the limitation of essential variables applicable to each process is observed. On Mon, Mar 2, 2026 at 12:26 PM praba karan < prabakaran776@gmail.com > wrote: Dear experts, For procedure qualification as per ASME SEC IX- "Multiple PQRs may support one WPS", Likewise can we follow the same practice in AWS also?  Because which is not mentioned directly on the code that we can use multiple PQRs to support one WPS.(And I'm not using prequalified WPS) Thanks & regards Prabaharan -- 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 vi...

I suppose you can support only for welding positions. Unlike ASME Sec.IX code for process vessels & piping where the Load is uniform and the materials are restricted by code it allows for combination. But AWS D 1.1, you are subjected to Static, Dynamic & cyclic loading as well and as such there is no statement like ASME Sec.IX like combining WPS/PQR. Moreover you prepare WPS for 1 Pressure vessel and it is easy to control in the shop but whereas AWS D1.1 say for example offshore platforms, you have many varied components like Beam, Plates, girders, tubulars etc.. and it is difficult to control. Only for need based WPS to be used for AWS D1.1. Thanks & Regards J.Gerald Jayakumar 0091-8838619635 On Monday, 2 March 2026 at 02:56:11 pm IST, praba karan <prabakaran776@gmail.com> wrote: Dear experts, For...

Just to add, Pressure vessels is designed mostly for Internal pressure & external pressure. section 5.2.2 is for combination of qualified & prequalified WPS and not pertaining PQR's. Thanks & Regards J.Gerald Jayakumar 0091-8838619635 On Monday, 2 March 2026 at 04:06:29 pm IST, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote: I suppose you can support only for welding positions. Unlike ASME Sec.IX code for process vessels & piping where the Load is uniform and the materials are restricted by code it allows for combination. But AWS D 1.1, you are subjected to Static, Dynamic & cyclic loading as well and as such there is no statement like ASME Sec.IX like combining WPS/PQR. Moreover you prepare WPS for 1 Pressure vessel and it is easy to contr...

AWS D1.1 does not restrict the number of PQRs supporting a WPS. Clause 6 requires only that essential variables be validated by procedure  qualification testing. Where a single PQR does not cover all required variables of a production WPS, multiple PQRs may be combined to provide  full technical support. Therefore, using  multiple PQRs to support one WPS is fully acceptable and code-compliant.  Sridhar. On Mon, 2 Mar 2026 at 16:11, 'james gerald' via Materials & Welding < materials-welding@googlegroups.com > wrote: Just to add, Pressure vessels is designed mostly for Internal pressure & external pressure. section 5.2.2 is for combination of qualified & prequalified WPS and not pertaining PQR's. Thanks & Regards J.Gerald Jayakumar 0091-8838619635 On Monday, 2 March 2026 at 04:06:29 pm IST, 'james gerald' via Materials & Welding < material...

Penetration level: As per EN/ISO 17636-1 For CS:    ~30-200 mm (X-ray -1-4MeV Class A) ;   ~50-180 mm (Class B- Inspector training). For DSS: Same above range as a base and to meet IQI.   Penetration level: As per ASME sec. V   For CS: No Specific limits. X-ray energy and technique to achieve required penetration and IQI sensitivity up to job thickness.   For DSS: Same above and to meet IQI for the thickness used. Sridhar. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- On Tue, 10 Feb 2026 at 00:25, pradip kumar Sil < pradipsil@gmail.com > wrote: Hi Everybody, Can anyone tell me the required thickness for X-ray penetration of carbon steel and DSS materials as per EN/ISO/ASME codes? Please refer to the relevant code/ standard.   Rgds -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message beca...

Dear experts, Kindly advise if any code or standard specify to use pressure chart recorder for piping spools hydrotest. The client asking to use it although it is not mentioned in the approved procedure/ITP. Please advise. Thanks, Mahmood -- 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 visit https://groups.google.com/d/msgid/materials-welding/CANV5n6ja_XKiu8F5BBpa0vK0hW-CeJ%2BgttfPDuecYvdJfmUz%2Bw%40mail.gmail.com .