CS welder can possible SS welding...

[PK M]

Dear Experts,

Please explain a welder is qualified on ½ inch dia Carbon steel pipe butt joint with GTAW process. So he can weld on ½ inch dia stainless steel pipe butt joint with GTAW process. If any problem for material composition?

Thanks,

Pkm.

[mohd]

yeas he can provided you have WPS for SS joints.

regards
mohd.

[Richard robes]

As he is qualified on without backing process(CS GTAW), he can weld on with back  process(SS GTAW), as per sec ix he will be qualified throughout the p material series from CS to SS, so material grade isn't a problem.

Regards

Richard

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

[Jeya Prakash]

Dear Pkm,

The welder is qualified for all the Essential variables for welders like Outer diameter, P.No, F.No, Welding Process & thickness.There is only one major change in SS welding is back purging(backing). A welder qualified without backing, can weld with backing as per ASME sec IX.

So a welder qualified in CS without purging can weld SS with purging..

regards

JP

--

[Amit Singh]

As ASME Sec 9 removal of inert gas backing is essential variable so as per code yes , & same is not for a SS welder welding CS joint
Amit Singh
Sent from my iPhone

--

[kannayeram gnanapandithan]

which code says, purging of SS is mandatory or essential. could some one elaborate?????

[Brajendra Singh]

yes he is also qualified for ss pipe because as per ASME sec IX addition of inert gas backing is not a essential variable so he is qalifed for both with or without gas purging.

On Sat, Dec 7, 2013 at 10:46 PM, Amit Singh <kshtri...@gmail.com> wrote:

Thanks & Regards,

Brajendra  Singh Patel

Welding Engineer

pune, India

cont:+919325085748

[tugrulhan özdemir]

Hi

What about P numbers for CS and SS ?

Saygılarımla / Regards

-

Tuğrulhan ÖZDEMİR

API 653 AI, Welding & Materials Eng.

Iraq mobile number: +964 782 311 67 81

2013/12/8 Brajendra Singh <brajendr...@gmail.com>

[Zeghanu Gigi]

 

QW-423 Alternate Base Materials for Welder

Qualification

QW-423.1

Base metal used for welder qualification

may be substituted for the metal specified in the WPS in

accordance with the following table. When a base metal

shown in the left column is used for welder qualification,

the welder is qualified to weld all combinations of base

metals shown in the right column, including unassigned

metals of similar chemical composition to these metals

 

 

 

Qualification Base Metals

P-No. 1 through P-No. 15F, P-No. 1 through P-No. 15F,

P-No. 34, and P-No. 41 P-No. 34, and P-No. 41

through P-No. 49 through P-No. 49

P-No. 21 through P-No. 26 P-No. 21 through P-No. 26

P-No. 51 through P-No. 53 or P-No. 51 through P-No. 53 and

P-No. 61 and P-No. 62 P-No. 61 and P-No. 6

2013/12/8 Brajendra Singh <brajendr...@gmail.com>

To unsubscribe from this group, send email to mailto:materials-welding%2Bunsu...@googlegroups.com

For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.

To unsubscribe from this group and stop receiving emails from it, send an email to mailto:materials-welding%2Bunsu...@googlegroups.com.

For more options, visit https://groups.google.com/groups/opt_out.

Thanks & Regards,

Brajendra  Singh Patel

Welding Engineer

pune, India

cont:+919325085748

--
To post to this group, send email to material...@googlegroups.com

To unsubscribe from this group, send email to mailto:materials-welding%2Bunsu...@googlegroups.com

For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.

To unsubscribe from this group and stop receiving emails from it, send an email to mailto:materials-welding%2Bunsu...@googlegroups.com.

For more options, visit https://groups.google.com/groups/opt_out.

[Ansari intekhab alam]

Dear

welder is qualified for range of P nos in said case. Aper ASME Sec 9 welder is qualified from P No 1  To P No  15 F , P no. 34 , P No 41 Through 49 so not a problem at all.

Cheers

Thanks
Regards
Intekhab Alam Ansari

[Shyju Rajan]

SO MAKE WPS for½ inch dia stainless steel pipe

butt joint with GTAW process

Based on That Prepare PQR and welder attend corresponding WQT.............

..once he passed this he can weld ...........

So he can weld on ½ inch dia stainless steel pipe
butt joint with GTAW process