QW 200.4 (a)

[mirhosseini]

I have a questoin for QW200.4(a) of ASME SecIX where we read "one or more processes or precedures may be deleted from a qualified combination procedure".

My WPS:
Base metal thickness:14 mm
process:GTAW

My PQR:
Base metal thickness(Same P-Number and G-Number):20mm
process:GTAW + SMAW
Deposite weld metal thickness:8mm(root and hot pass)

* Other essensial,nonessensial and supplementary variables are same.
*Notch-Toughness test is required.

Now I want to know this PQR support my WPS or not. If answre is "No" why?


Regards
H.Mirhosseini

 

[sayee1]

No, see QW 403.6 for minimum qualified base metal thickness.

Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The black holes of nature are the most perfect macroscopic objects there are in the universe: the only elements in their construction are our concepts of space and time.

 

[mirhosseini]

Thanks a lot!

Could you tell me about following situation:

1- The same WPS and PQR (if Notch-Toughness test is NOT required).

2-
WPS:
Base metal thickness:16 mm
process:GTAW
PQR:
Base metal thickness(Same P-Number and G-Number):25mm
process:GTAW + SMAW
Deposite weld metal thickness:9 mm(root and hot pass)
**Notch-Toughness test is required
**Other essensial,nonessensial and supplementary variables are same.

Please notice that these promblems are not REAL.
I want to understand the Code(ASME Sec IX) better.It is very good if you bring an example for QW200.4(a)

Thanks again

Regards
H.Mirhosseini

 

[sayee1]

1- Yes.

2- Yes.


Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
email: sayee_prasad@yahoo.com
The black holes of nature are the most perfect macroscopic objects there are in the universe: the only elements in their construction are our concepts of space and time.