Hi Ansari,
Please see the earlier discussion on the similar topic posted in ther forum.
Note other than "Mn" SA 516/70 steel does not have any alloying element, which can improve the mechanical properties after normalizing.Hence welding consumable with alloying elements are always advisable
Thanks
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Prakash Hegde
Sent: Sunday, May 13, 2012 10:35 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:14257] RE: 14217] Flux-Electrode Combination required.
Generly Normalizing + SR of 7018 catagory weld will not give required UTS of SA516 Gr70 as it deteorates the value Therefore It is recomeded E9018 with higher Mn for welding Gr70 CS which undegoes NR but However more than 50 thk weld with more than 2hrs Soaking time of NR even E9018 is not suitable.In such case The D/E of Crown and petal construction is recomended (With B2 having Cr is not suitable for such NR condition) Incase of SAW process there is no suitble wire and flux combination (Even EH14 is not good) some time you can try EA3 or EF3 (SAF 5.23) but not for higher thk To get good results you may high to make trials with NR time and temp Regards Hegde P.B. 08805593046 --- On Sun, 13/5/12, kannayeram gnanapandithan <kgpandithan@gmail.com> wrote:
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