AWS D1.1 Table 4.6 Clause 1-Change in Group No.

[K.Babu]

Gents,

 

 

WPS is qualified in Group II to Group II, with CVN @-40 deg. cel.,

 

Can we use this WPS , to weld Group II to Group I  combination with requirement of CVN @-20 deg cel.

 

 
Thanks & regards,

K.Babu

[Rems Okonkwo]

Dear K Babu,

WPS qualified on group II materials can be use on group I and Group II and its combination if all other variables are constant.
As per the CVN @-40, if the values obtained @-40 met the specification requirement @ -20 then the WPS is qualified as you requested. so you need to check the minimum value required @-20 and if the values obtained @ -40 meet the requirement @-20.

Regards,

Rems Okonkwo

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[KINHUI KANG]

Dear K.Babu,

A change in Group Number is a supplementary essential variable according to AWS D1.1.
Your WPS qualified in Group II to Group II cannot qualify for Group I to Group II.

Best regards,
Kang

---

Date: Mon, 25 Jul 2011 13:25:37 +0100
Subject: Re: [MW:11906] AWS D1.1 Table 4.6 Clause 1-Change in Group No.
From: rems.o...@gmail.com
To: material...@googlegroups.com

[Eswaran samikannu]

As Per AWS D1.1 Group 2 material qualifies Group 1 also & CVN -40 Qualifies -2o also.

By

S.Eswaran

CSWIP -3.2.1

ASNT NDT Level III (RT,UT,PT &MT) 

---

From: K.Babu <kbab...@gmail.com>
To: material...@googlegroups.com
Sent: Sunday, 24 July 2011 9:55 PM
Subject: [MW:11886] AWS D1.1 Table 4.6 Clause 1-Change in Group No.

[manpreet]

Hi,

 

Unfortunately you can not use PQR (P1 Gr2 to P1 Gr2) to weld P1 Gr1 to P1 Gr2, find out if you have PQR qualified with P1 Gr1 to P1 Gr2.

 

Intent of code is to have impact test done on both material else look for a material with dual certificate (both Gr1 & Gr2).

 

 

Regards

Manpreet Singh

 

From: "K.Babu" <kbab...@gmail.com>
Sent: Tue, 26 Jul 2011 07:53:34
To: material...@googlegroups.com
Subject: [MW:11886] AWS D1.1 Table 4.6 Clause 1-Change in Group No.

Gents,

 

 

WPS is qualified in Group II to Group II, with CVN @-40 deg. cel.,

 

Can we use this WPS , to weld Group II to Group I  combination with requirement of CVN @-20 deg cel.

 

 
Thanks & regards,

K.Babu

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

Treat yourself at a restaurant, spa, resort and much more with Rediff Deal ho jaye!

[K.Babu]

Manpreet,

 

Sec IX not in picture .

--
Thanks & regards,

K.Babu
Singapore