AWS D1.1 _2010- Table 4.1,4.5 & 4.6-WPS/PQR -Production Qualification Range

[Anban]

Dear Sirs

Pls advise

Table 4.1- WPS/PQR qualified in 3G Position=

Production Plate Welding Qualified - Groove CJP/PJP & Fillet - Vertical only

Production Pipe Welding Qualified - Butt Joint - CJP/PJP( Outside Dia 20" and above ) - Vertical only

Production Box Tube Welding Qualified- Fillet - Vertical only

Table 4.5 #27) A change in position not qualified by Table 4.1- Require New WPS/PQR Qualification

Table 4.5 #30) Vertical Welding: For any pass from uphill to downhill or vice versa-Require New WPS/PQR Qualification

Whereas in Table 4.6-PQR Supplementary Essential Variable Changes for CVN Testing Applications Requiring WPS Requalification for SMAW, SAW, GMAW, FCAW, and GTAW

Table 4.6 -Position # 6 -A change in position to vertical up. A 3G vertical up test qualifies for all positions and vertical down.

In my opinion both Table 4.1 & 4.5 contradicts with Table 4.6 # 6  Statement.

My understanding is if my WPS/PQRs qualified with certain CVN testing in 3G position, I can use it for for all Prodiction weld positions -Plan , Horizontal, Vertical-Up, Vertical down and Overhead weld positions.


Thanks

[Anban]

For further Ref - AWS D1.1-Code Interpretation
Subject: Single-V-Groove Butt Joints and Groove Type Qualification
Code Edition: D1.1:2006
Code Provision: Table 4.5 Variable Nos. 31& 32 and Subclause 4.9
AWS Log: D1.1-06-I11b

Inquiry:
(1) Does a WPS qualified using a Single-V-Groove CJP Butt joint qualify for all other joints in conformance with 3.12 or 3.13 regardless of joint design, except for square groove joints as listed in essential variable 32, even if they require CVN testing?
(2) Does the requirement of Section 4.9.1.1 supersede the essential variable 31 and require the WPS be qualified with the same groove configuration to be used in construction as written in the code?
(3) Is it acceptable to allow previously qualified Single-V-Groove CJP butt joints to qualify single-bevel CJP T & Corner joints?

AWS D1.1 Committee Response:
(1) Yes.
(2) Yes, for non-tubular connections qualified by test.
(3) Yes, except for CJP groove welds for nontubular connections (see 4.9.1.1).

A 3G vertical up test qualifies for all positions and vertical down.

My understanding is if my WPS/PQRs qualified with certain CVN testing in 3G position, I can use it for for all Prodiction weld positions -Plan , Horizontal, Vertical-Up, Vertical down and Overhead weld positions ( based AWS D1.1 Code Interpretation D1.1-06-I11b)


Thanks

[rml...@gmail.com]

PQR Qualified 3G Position

WPS Qualified vertical only position 

as per AWS D1.1... again qualified every position PQR & WPS