Welding of SS316L

[Krish QA]

Dear Experts

SS 316L Plate of 2mm welded with ER316L filler wire (1.6mm) using GTAW proceeds with Argon 99.99% for WPS qualification.

After welding we found the following

1.    Centre line crack on root side

2.    Irregular weld profile on root side

Please advice how to medicate these discrepancies.

Regards

Krish

[Krish QA]

Please refer attached picture for your review...

 

Regards

 

Krish

[chiluka venkatramulu]

Your picture shows that purging was not given or properly not purged.

Regards,

C.V.Ramulu.

--
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.

[Eng.Mahmoud kamel]

reason of crack
wrong filler wire or high heat input @check base metal or filler metal+ check welding parameter @weld profile related to welder skills

regards
Mahmoud

---

Date: Fri, 20 Sep 2013 01:52:43 -0700
From: sara...@gmail.com
To: material...@googlegroups.com
Subject: [MW:18712] Re: Welding of SS316L

[Jatin Patel]

Dear Krish

 

Are you given back purging by argon ?.

 

With regards,

 

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Krish QA
Sent: Friday, September 20, 2013 2:23 PM
To: material...@googlegroups.com
Subject: [MW:18712] Re: Welding of SS316L

 

Please refer attached picture for your review...

--

[Saravanan Krish]

Dear Mr.Patel

No Back purging given by Argon. This PQR qualification is to weld a
cabinets for instrumentation items.

Regards
Krish

> <http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk
> =anet_ug_hm> &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.
>
> --
> 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 a topic in the

> Google Groups "Materials & Welding" group.

> To unsubscribe from this topic, visit
> https://groups.google.com/d/topic/materials-welding/qqvGeWTfweQ/unsubscribe.
> To unsubscribe from this group and all its topics, send an email to

> materials-weld...@googlegroups.com.
> For more options, visit https://groups.google.com/groups/opt_out.
>

--
Thanks & Regards
Krish.Saravanan

[mohd]

dear krish,
1, cetreline crak is clear result of improper cleaning of plates and filler metal and tools.
2.or you can have squire butt joint.
3.if you are using 3G position try with 1G.
4.you can go for stringer bead instead of weaving as shown in pic.
5.you can have vertical upward instead of downward as i show in pic ripples.
6.fine tune your weld parameter with good skillfull welders.

would you ever try autogenous welding for such thin plates.?

regards
mohd.

[George V Aliyattukudy]

Hi Krish,

Your weld appears to be heavily oxidized, this normally happens when there is insufficient purge or contaminants.

 

George V Aliyattukudy

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Krish QA
Sent: Friday, September 20, 2013 12:53 PM
To: material...@googlegroups.com
Subject: [MW:18712] Re: Welding of SS316L

 

Please refer attached picture for your review...

--

[jaya anil]

Main Reasons : Root Gap, Heat Input, Skills of welder, Shielding, Filler wire .

Can i know why are you qualifying WPS with 2mm plate. is it a client requirement, other wise you can go for higer thick ,as WPS will having thickness range.

--

[aa bb]

dear ,

if u cannot do purging u may use Electrode R316LT1-5 for root without purging.

regards,

sam