API 1104 X-65 to X-70

[hmzM]

1. If WPS for X-70 11.71mm has been qualified and WPS for X-65 18.91mm also has been qualified. Did need another WPS to be qualified to tie-in between the X-70 and the X-65 pipe? or we can use the qualified PQR for X-70 pipe?

2. If WPS for X-65 12.61mm has been qualified and WPS for X-65 18.91mm also has been qualified. Did need another WPS to be qualified to tie-in between the both X-65 pipes? or we can use the qualified PQR for X-65 12.61mm pipe and produce WPS with a change of bevel preparation for 18.91mm pipe(single-V with internal taper)?

 

[sayee1]

1. If WPS for X-70 11.71mm has been qualified and WPS for X-65 18.91mm also has been qualified. Did need another WPS to be qualified to tie-in between the X-70 and the X-65 pipe? or we can use the qualified PQR for X-70 pipe? Separate PQR will be required for the combination of X70 TO X65.

2. If WPS for X-65 12.61mm has been qualified and WPS for X-65 18.91mm also has been qualified. Did need another WPS to be qualified to tie-in between the both X-65 pipes? or we can use the qualified PQR for X-65 12.61mm pipe and produce WPS with a change of bevel preparation for 18.91mm pipe(single-V with internal taper)? The thickness at the weld joint is anyways going to be 12.61mm with a taper on the higher WT. Thus the qualified PQR for X-65, 12.61mm pipe and generated WPS with a change of bevel preparation for 18.91mm pipe(single-V with internal taper)can be used.

Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
If it moves, train it...if it doesn't move, calibrate it...if it isn't written down, it never happened!