QW 403.5

[Ani18]

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

Interpretation: IX-89-75
Subject: Section IX; QW-403.5, QW-403.11, and QW-424
Date Issued: September 20, 1990
File: BC90-443
Question (1): A procedure qualification using the SMAW process in a V-groove joint has been qualified with acceptable bends, tensiles and charpy V-notch impact specimens, using P-No. 1 Group 2 material welded to a P-No. 3 Group 3 material. Does the procedure qualification support the welding of P-No. 1 Group 2 material together when notch toughness tests are required?
Reply (1): No.
Question (2): Does the procedure qualification support the welding of P-No. 1 Group 2 material to P-No. 3 Group 3 material?
Reply (2): Yes.
Question (3): Does the procedure qualification support the welding of P-No. 3 Group 3 material together?
Reply (3): No

What is the difference between two statements? Kindly explain

 

[david339933]

The first one is used quite a bit. If I needed a WPS for SA-516-70, I will make a coupon of SA-516-70 and SA-516-65 duel certified. This is a P#1 group #2 (SA-516-70)/P#1 Group #1 (SA-516-65). This will then qualify you for P1G1 to P1G2, P1G1 to P1G1, P1G2 to P1G2.

The second is only P1G2 to P3G3....and that is all you are qualified for.

This has been discussed many times on this forum, I suggest you search before posting.