E7018-1 is good weld ability for above 32 thickness, last month in structural I welded E7018 for 32mm thk web with 32mm thk flange IS2062 all the fillet joint CRACKED immediately. So after that we used E7018-1 no crack observed.Regards,Gurugopal.P.G--On Thu, Sep 3, 2020, 1:36 AM <pgoswami@rogers.com> wrote:--Hi Ghulam,
E 7018-1 electrodes contains more Mn than E-7018 electrode, at the same strength(UTS) level, 70 Ksi. The advantage is better impact . Typically E-7018-1 are designed for impact up to -46 Deg c , while the same for E-7018 is up to -29 Deg C.
In order to avoid duplicity or redundant work nowadays it's very commons for electrode manufacturers to classify same welding electrode as E-7018-1/E-7018, which is called dual certification.
Please look at the highlighted text from, SFA 5.1 , Sec-II, Pt-C, on E-7018-1 welding electrodes.
As the mechanical and other properties of the deposited are not changed, a change from E-7018 to E-7018-1 , will not cause any harm the welds . However if should be addressed in WPS or regularized through an NCR.
Thanks
Pradip Goswami, P.Eng, IWE
Consultant-Welding-Metallurgical Engineering
Cell & Whatsapp-905-9793232.
From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of Ghulam Mustafa
Sent: September 2, 2020 1:06 AM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:31380] E-7018-1 is better then E7018
Dear All,
Hope you are fine.
i want discuss that i was gone yesterday for inspection in other company as a third party, i checked WPS for welding inspection, during inspection i observed that welder used E7018-1 Electrode instead of E7018 on structure. structure material A572 Grade-B and A-36. E7018-1 can problem or not?
can any one tell me about this problem.
--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/b55e87f5-633e-477c-b7ad-be9aa33fcd52n%40googlegroups.com.
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/!%26!AAAAAAAAAAAuAAAAAAAAABVPzeizzeRJsiPziIE5jXQBAMO2jhD3dRHOtM0AqgC7tuYAAAAAAA4AABAAAABdjwnV4xhkT7DAhF7Nk11VAQAAAAA%3D%40rogers.com.
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAKPFhX7qq3uUb7f%2BE1pz5pu9skkeSBKxVU071Mxd7BCH4oWQ1A%40mail.gmail.com.
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAHnLYC%2BTw9oN6_aCAhPHf%2B3hVpDVTmXy86JR5Uw6QkBR1afypA%40mail.gmail.com.
Comments