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Literature and application of ER310 filler wire

Literature and application of ER310 filler wire

Postby Hrushikesh » Mon Nov 25, 2013 2:25 pm

Dear all,
Please share some literature on this specific grade ER310.

Thanks
Hrushikesh
 
Posts: 11
Joined: Fri Aug 23, 2013 2:54 pm

Re: Literature and application of ER310 filler wire

Postby mawsamit » Tue Nov 26, 2013 3:43 pm

Dear Hrushikesh,
The nominal composition of ER310 welding wire is 26.5 Cr, 21 Ni and it is frequently used to weld base metals of similar composition in wrought or cast form. Due to the fully austenitic form of deposited metal special care shall be taken to keep the heat input in low levels during welding. In addition, ER310 welding wire can be used for dissimilar welding (stainless steel to carbon steel). It is produced as per SFA-5.9 (specification for bare stainless steel welding electrodes and rods) as well as it has F-number: 6 and A-number: 9. At this post you could see cases where ER310 is used: Filler metal, preheat and PWHT selection guide.
Please let us know if you need something more.
regards
mawsamit
mawsamit
 
Posts: 28
Joined: Thu Oct 24, 2013 11:16 am

Re: Literature and application of ER310 filler wire

Postby Hrushikesh » Wed Nov 27, 2013 5:26 pm

Thank you. I want some more literature as to why this grade was developed? What are the effects of ferrite content in this specific grade. If you have some references specifically on this grade kindly share.

Thanks
Hrushikesh
 
Posts: 11
Joined: Fri Aug 23, 2013 2:54 pm

Re: Literature and application of ER310 filler wire

Postby mawsamit » Fri Nov 29, 2013 11:22 am

Dear Hrushikesh,
Low ferrite number in austenitic stainless steel welds (approximately less than FN4) may result in hot cracking (known also as solidification cracking) while higher ferrite number (approximately more than FN10) reduces the corrosion resistance. Regarding hot cracking, it is basically caused due to the presence of elements like sulfur and phosphorous where their metallic compounds penetrate grain boundaries of the weld or heat affected zone resulting in cracking. Austenitic microstructure is much more prone to such penetration with respect to ferritic microstructure and thus much more prone to hot cracking. Regarding ER310 filler metal, since it is fully austenitic, controlling conditions during welding are required to keep ferrite number at desirable levels (more than FN4) when ER310 is used for austenitic stainless steel welding (carbon steel contains much ferrite). So, for such a welding the presence of Nitrogen is prohibited because it helps to creation of austenitic formation as well as preheating is required so as to result in lower cooling rate that supports the ferrite formation.
Here you can find information for hot cracking in austenitic stainless steel welds: http://www.ias.ac.in/sadhana/Pdf2003JunAug/Pe1119.pdf
regards
mawsamit
mawsamit
 
Posts: 28
Joined: Thu Oct 24, 2013 11:16 am

Re: Literature and application of ER310 filler wire

Postby MikeHotchkiss » Thu Apr 30, 2015 9:34 am

you can easily find the literature on internet just type your keyword on Google
MikeHotchkiss
 
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Joined: Thu Apr 30, 2015 9:30 am


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