Materials & Welding

Dear All we have qualified WPS for ( ASME SEC IX) 1. BASE plate 8 mm ( 8TO 16 mm RANGE WITH IMPACT )  2 . BASE plate 25 mm ( 16TO 50mm RANGE WITH IMPACT )  Qualified WQT BASE PLATE THICKNESS :25 mm  ( 50 mm max )  My question is   Can we use this plate WPS and WQT  to weld 24inch pipe (9.5mm wall thickness )and 26 pipe(14mm wall thickness ) ,Welder can weld 8 mm wall thickness pipe ?                                  he qualified in 25 mm plate only  .please quide me Regard  ELAVARASAN   -- 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/CAJ9L4ymSZ4aGa3XqiJswKMyr0sqCGWJO6xfGf_NCpqTSNFN5-A%40mail.gmail.com . ...

What is the diameter of the pipe to be welded , ASME IX give a limit on the diameter to be welded by a welder that has been qualified in a plate and what positions they can weld  On Wed, 16 Apr 2025 at 08:57, Elavarasan Mech < elavarasan1861994@gmail.com > wrote: Dear All we have qualified WPS for ( ASME SEC IX) 1. BASE plate 8 mm ( 8TO 16 mm RANGE WITH IMPACT )  2 . BASE plate 25 mm ( 16TO 50mm RANGE WITH IMPACT )  Qualified WQT BASE PLATE THICKNESS :25 mm  ( 50 mm max )  My question is   Can we use this plate WPS and WQT  to weld 24inch pipe (9.5mm wall thickness )and 26 pipe(14mm wall thickness ) ,Welder can weld 8 mm wall thickness pipe ?                                  he qualified in 25 mm plate only  .please quide me Regard  ELAVARASAN   -- 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 fr...

PIPE DIA :24 INCH AND 26 INCH  We have WQT for 2G & 3 G position  Production weld 1G FLAT POSITION  On Wed, 16 Apr 2025 at 12:17 PM Rilley Chellah Mulenga < rilley.mulenga@ahkgroup.com > wrote: What is the diameter of the pipe to be welded , ASME IX give a limit on the diameter to be welded by a welder that has been qualified in a plate and what positions they can weld  On Wed, 16 Apr 2025 at 08:57, Elavarasan Mech < elavarasan1861994@gmail.com > wrote: Dear All we have qualified WPS for ( ASME SEC IX) 1. BASE plate 8 mm ( 8TO 16 mm RANGE WITH IMPACT )  2 . BASE plate 25 mm ( 16TO 50mm RANGE WITH IMPACT )  Qualified WQT BASE PLATE THICKNESS :25 mm  ( 50 mm max )  My question is   Can we use this plate WPS and WQT  to weld 24inch pipe (9.5mm wall thickness )and 26 pipe(14mm wall thickness ) ,Welder can weld 8 mm wall thickness pipe ?                                  he qualified in 25 mm plate only  .please quide me Regard  ELAVARASAN   -- https://materials-wel...

For WPS/PQR qualification, Diameter is an non essential variable according to ASME Sec.IX and position is a supplementary essential variable and only progression UP or DOWN counts. For Welder Qualification check QW-461.9 Table & Table QW-452.3 Thanks & Regards J.Gerald Jayakumar 0091-8838619635 On Wednesday 16 April, 2025 at 01:47:36 pm IST, Rilley Chellah Mulenga <rilley.mulenga@ahkgroup.com> wrote: What is the diameter of the pipe to be welded , ASME IX give a limit on the diameter to be welded by a welder that has been qualified in a plate and what positions they can weld  On Wed, 16 Apr 2025 at 08:57, Elavarasan Mech < elavarasan1861994@gmail.com > wrote: Dear All we have qualified WPS for ( ASME SEC IX) 1. BASE plate 8 mm ( 8T...

  Dear Mr. Elavarasan,   Plate to Pipe Qualification:  A welder qualified on a plate is qualified to weld on pipe, but there are diameter and p osition restrictions   Pipes of OD 24 and 26 inches, are well above 73 mm, so diameter is not a restricting factor for  your case.   For your 25 mm plate: The qual. range is 12.5 to 50 mm  for production welds (with impact testing).    24-inch pipe (9.5 mm wall):     Not qualified, as the wall thickness is less than the minimum qualified thickness of 12.5 mm.   26-inch pipe (14 mm wall) :     Qualified, as the wall thickness is within the qualified range.   8 mm wall thickness pipe:        Not qualified, as it is below the minimum qualified thickness.   Welder Qualification (WQT):  The same thickness rules apply to the welder as to the procedure, unless the welder was qualified                                                    on pipe directly, in which case the thickness and diameter ranges may differ .                                        ...

Dear Sridhar                         In my case we have qualified WPS with impact requirement  WPS 1.  BASE PLATE THICKNESS 8 mm  WPS 2. BASE PLATE THICKNESS 25 mm QUALIFIED WQT : 25 mm PLATE    Welder qualifications need to be consider impact requirement or not as per ASME sec IX     Above mentioned 25 mm thick base plate WQT.    can use  production weld ( 8mm to 25mm) please clarify  ELAVARASAN On Wed, 16 Apr 2025 at 2:33 PM sridhar cn < sridharcn305@gmail.com > wrote:   Dear Mr. Elavarasan,   Plate to Pipe Qualification:  A welder qualified on a plate is qualified to weld on pipe, but there are diameter and p osition restrictions   Pipes of OD 24 and 26 inches, are well above 73 mm, so diameter is not a restricting factor for  your case.   For your 25 mm plate: The qual. range is 12.5 to 50 mm  for production welds (with impact testing).    24-inch pipe (9.5 mm wall):     Not qualified, as the wall thickness is less than the minimum qualified thickness of 12.5 mm.   26-inch pi...