ASME IX P NUMBERS.

[blueyonder]

I have a Procedure qualıfıcatıon record qualıfıed to ASME 1X for 8ınch dıam groove weld, pıpe 6G posıtıon
ThK 10mm, Materıal API 5L X65 to API 5L X65. P1 Group-2 to P1 group-2

Can I develope weld procedures from the PQR for weldıng the followıng;
(notch toughness requırement applıes)

1. 8ınch dıam, groove weld, pıpe 5G posıtıon.
ThK 10mm, Materıal API 5L X52 to API 5L X52. P1 Group-1 to P1-Group-1

2. 8ınch dıam, groove weld, pıpe to flange, 5G posıtıon
ThK 10mm, Materıal API 5L X52 pıpe to ASTM A105 flange. P1 Group-1 to P1 Group-2

Can you please explaın your answer as I have a consern wıth the P numbers..

 

[weldstan]

No. Group Nunber is an essential variable for impact test qualification.

 

[blueyonder]

If the PQR was for a P1 Group 2 to a P1 Group 1 materıal would thıs allow me to develope WPS for weldıng
any of the prevıosly mentıoned pıpes ın questıon-1 and 2.

 

[weldtek]

Assuming you have a copy of Sec IX, look up the appropriate table for the process you plan to use. QW 25x
For example if you are planning to use GTAW you'll want to review Table QW 256. It will reference QW 403 for base metals and the appropriate paragraph will be QW 403.5. Therein lies your answer.

 

[blueyonder]

The answer I requıre only relates to P number and group number.

Basıcally does a PQR for P1 Group 2 to P1 group 1 allow WPS to be formulated for
1. P1 Group-1 to P1-Group-1
2. P1 Group-1 to P1 Group 2

 

[SectionIX]

P1 Group 2 to P1 Group 2 as well...

 

[david339933]

Interpretation: IX-92-70R
Subject: QW-403.5, Base Metals
Date Issued: June 4, 2001
File No: 00-470

Question (1): When a procedure qualification with supplemental notch toughness requirement is conducted with one P-Number material having multiple certifications in different Group Numbers, are WPSs qualified for all combinations of the Group Numbers?

Reply (1): Yes.

Question (2): In the above question, does one set of HAZ impact specimens, when required, satisfy the requirements of Section IX?

Reply (2): Yes.

Question (3): When a procedure qualification with supplemental notch toughness requirement is conducted with two materials of different P-Number each having multiple certifications in different Group Numbers, are WPSs qualified for all combinations of the multiple certified Group Number of the first P-Number material to the multiple certified Group Number of the second P-Number material?

Reply (3): Yes.

Question (4): In the above question, does one set of HAZ impact specimens from each P-Number material, when required, satisfy the requirement of Section IX?

Reply (4): Yes.

Question (5): In Question (3), are materials from the multiple certified Group Numbers qualified for welding a P-Number material to itself?

Reply (5): No.

Note: The term “multiple certifications” as used means any material for which a material test report indicates that the material meets all the requirements of two or more specifications, grades, types, or classes.