Filler material Selection

[Navanith]

Dear Experts,

Require guidance on filler material selection as per ASME BPVC.

For example:I received this query from a client

Base metal is ASTM A106 Gr.B and they want to weld using E316L electrodes.

Is it possible to use E316L electrodes to weld directly?

Regards,

Navanith

[anand gupta]

Dear 

If base metal is SA 106 GR B then why u r going for SS316L. 

Simple go for  ER70S2/E7018

REGARDS 

A P GUPTA 

BARODA 

THYSSENKRUPP 

Sent from Yahoo Mail on Android

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[Kannayeram Gnanapandithan]

Use 309

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[Kannayeram Gnanapandithan]

Pl refer B31.1 , chapter V, 128 and give your opinion , when joining Austenitic material with other like C's, weldmetal structure should have Austenitic structure. Thanks

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[HENNING John]

Possible, yes, but not for Section I if water wetted service.

 

Practical, no, absolutely not.  I have a really difficult time trying to come with any reason to do this and a host of possible issues if done.

 

Enjoy - John

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[Navanith]

Received clarification from the client about using E316L to weld Carbon steel.

Their welders are qualified to weld steel (P1 to P15) with filler material (F1 to F4).

They want these welder to be qualified for F No. 5 but do not have austenitic steel base metal in stock. Only Carbon steel is available in stock.

Therefore, they have requested a PQR to weld Carbon steel base metal P No 1 with E316L and ER 316L (F5 and F6).

In case the coupon meets ASME Section IX Nondestructive and destructive testing requirements, they will prepare a WPS which shall be used only to qualify welders for F number.

On another note, I hope to receive guidance on selection of filler materials in general. 

What are the parameters to be considered to select filler materials for any base metal and whether it is addressed by general standards in the industry.

Thanks and best regards,

Navanith

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[Jason]

ASTM A106 Gr.B  is Carbon steel，E316L electrodes are used for stainless steel

在 2019年12月23日星期一 UTC+3上午8:25:39，Navanith写道：

[Kannayeram Gnanapandithan]

While welding CS with 316, ( chemistry 19Cr+12Ni), there is loss in Cr and Ni more 316 when compare with 309( 24Cr+13). For maintaining austenetic structure in ASS( as per code B31.1, which is attached) minimum requirement of Ni is 8, which may not be achievable with 316. So, it is better to use 309 instead of 316

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

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