use ER316L to weld A312 TP 321

[Mohamed Elsayed ( BTG)]

Gents,

I need your valuable advice on following.

 

We have some joints in for Flare package ,

 

Can we use ER316L filler wire to weld

1-      butt welded joints A312 TP 321

2-      Butt welded Joints A403 WP 321

 

Separatly ,

 

We have  supporting PQR USING ER316L  welded material  A240 316L , can this PQR suppot welding

1-      butt welded joints A312 TP 321

2-      Butt welded Joints A403 WP 321

 

Waitting your reply ASAP

 

Thanks

Mohamed

 

[james gerald]

No, you need to use E/ER 347 to obtain optimal properties and good weld joint.

 

If Impact test is not applicable, then you can use the 316L PQR and prepare a WPS with E347 as the electrode.

 

Thanks & Regards J.Gerald Jayakumar 0091-9344954677

From: Mohamed Elsayed ( BTG) <MEls...@ccc.ae>
To: material...@googlegroups.com
Sent: Thursday, February 2, 2012 11:09 AM
Subject: [MW:13597] use ER316L to weld A312 TP 321

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[Ramin Kondori]

Normally 321 grade is being used because of its high temperature
corrosion resistance and I do not think the designer has specified
321 just for fun...!!!
By welding it with E316-L you won't have the same high temperature
properties in weld area. because the weld metal will no longer be full
austenitic and will fail at high temperatures.

If that is not a problem then go ahead but I do not recommend that...!!!

Regards
Ramin Kondori
IWE AT 0070

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Ramin Kondori
* QC/Welding Engineer *
* IWE AT 0070*

*با تشكر*

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*رامين كندري*

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*Ramin Kondori*

QA/QC Manager

IRAN-LNG Preoject

NARDIS ENERGY CO.

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[Mumtaz Ali Khan]

ER347 for GTAW&E347 for SMAW process.316 will not work on such high temprature

[franci...@indiatimes.com]

usaully SS 321 /310 materials used for high temperature service such as flare tips , Fired heater coils etc and you need to use ER 347 Ti /E 347 Ti consuambles
Frnacis