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Re: [MW:13948] use of E 7018 -1 & ER 70S-6 to weld SA 516 GR 70 MATERIAL

By Materials & Welding
Dear Asrad Azmi,
Additional to Mr. Arunachalam's comments
 
F7P8 EH12K (P= with PWHT) / essential variables as per QW404.9
 
Kavin Murugam
0126159644

From: Arunachalam A <arunvani@gmail.com>
To: materials-welding@googlegroups.com
Sent: Sunday, March 18, 2012 12:04 AM
Subject: Re: [MW:13913] use of E 7018 -1 & ER 70S-6 to weld SA 516 GR 70 MATERIAL

ER 70-S6 weld metal chemical analysis does not meet A No. 1.  

If you have qualified a WPS with Er 70-S3 etc, then this wire is not acceptable.  ( Manganese content is more than 1.6% in weld metal)

arun

On Sat, Mar 17, 2012 at 12:23 PM, asad azmi <azmiasadayub@gmail.com> wrote:
Dear All,
 
Vessel is being fabricated as per ASME SEC VIII DIV 1.
 
Base material - SA 516 GR 70 HIC - 30 mm Thk. IMPACT TEST not required.
 
  
normally  we are using E 7018 for SMAW,  ER 70S2 for GTAW  & F7P8 EH12K  for SAW Process to weld  above base material.
 
Can we use E7018-1 for SMAW,  ER 70 S6   for GTAW  & F7P8 EH12K for SAW for the above base material.
 
Please Advice.
 
Thanks & Regards
 
Asad Azmi
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