[MW:16046] RE: welding with EL8

Hi Kiran,

 

For SAW the wire flux classification is important than filler metal alone. Sec-IX,QW-404.9 addresses this issue.

 

A change from EH14 (1.8% Mn) to EL8( less than 1% Mn) would cause significant reduction in weld metal mechanical properties.

 

Hence this change may not be allowed unless a new PQR is qualified.

 

Thanks.

 

 

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist

Ontario, Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

 

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From: kiran kumar [mailto:chvvn.kirankumar@gmail.com]
Sent: Monday, November 26, 2012 3:54 AM
To: pgoswami@sympatico.ca; pgoswami@quickclic.net
Cc: materials-welding@googlegroups.com
Subject: welding with EL8

Dear Sir

 

Can we weld with Filler wire  EL8 with supporting PQR  EH 14 Filler wire (having same F no:6)

 Material IS 2062

 Construction code -BPVC Section IX

 Process-SAW Process.

 

Thanking you

 

CH.V.V.N.KIRANKUMAR

 

+91 7898905072