Alternative welding consumable for E7018-B2L

[sudalai kannan]

Dear Experts,

I have repair works on 100mm thick drum, Client refered to us use E7018-B2L, but I could not found this consumable in the market. Can u guide me which electrode can use instead off E7018-B2L and what is the different between E7018-1 & E7018-B2L.

Thanks to all.

Regards,

M.Sudalai.

[Prakash Hegde]

You can use E8018B2L --- On Thu, 29/11/12, sudalai kannan <suda...@gmail.com> wrote:

Thanks to all. Regards, M.Sudalai. -- To post to this group, send email to material...@googlegroups.com To unsubscribe from this group, send email to materials-weld...@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm   The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

[Rakesh Oza]

dear expart,

7018-1 electrodes are used for only p1 material where high impact
value required, but ur cliant says that use 7018-b2l then it means
that ur base matel is low alloy steel,just tell us material
specification and also if u search in asme sec. 2 c you will find
electrode . B2 stands for p4 material.

Regards,
rakesh oza

[HAREESH K V]

Dear Sir,

What is the specification of the material that is to be welded? Also D&H, ADOR and ESAB is having the electrode E7018-B2L. This is a commonly available brand, surprise to hear that you are not getting it.

Also please refer ASME Sec II C (Check it based on the SFA number you required) for understanding the difference. 

Regards,

Hareesh K V

+91-8306703707

--

[arturo diaz OLIVEROS DIZ]

The E-8018-B2L IS DELETED IN 1981 AND REPLACED BY E-7018-B2L, AND I FOUND IT IN THE MARKET
 

---

Date: Fri, 30 Nov 2012 14:06:09 +0800
From: pb.h...@yahoo.com
Subject: Re: [MW:16084] Alternative welding consumable for E7018-B2L

[c sridhar]

 

Mr. Kannan,

Few  more explanations are required. U have not mentioned the size of the electrode (or) current selection for that size, position, depth of

the defect, type of joint, position of welding etc.

Since it is thick base, we assume, U have used 3.20/4.00 electrode with appropriate current as recommended by the manufactures. The type

electrode, whether it is E 7018 B2L or E 8018 B2L do not make any difference and nothing to do with your  L F problem.. Use 3.2 initially and then

4.0 mm for  full fusion.

 

Repair welding is a specialty unlike normal joint welding. Apart from  preheating, grinding the defective area, use of some excessive (5 % or so)

current, grinding the initial repair weld, checking with DP if required are all important.

Repair welding requires a separate procedure update. Fill up  at edges to get good fusion.  If required, the initial  pass and  full repair welding

could be carried out with TIG also as each bead  below the next run gets normalized /tempered  and forming fine grain structure. But the choice

is yours.

Hence grind the repair area to provide free flow of weld metal. Check the current  and weld layer by layer, cross checking in between  .

I am sure the repair welding will come out well to pass the x-ray Test.

Sridhar.

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[c sridhar]

 

Mr. Kannan,

Few  more explanations are required. U have not mentioned the size of the electrode (or) current selection for that size, position, depth of

the defect, type of joint, position of welding etc.

Since it is thick base, we assume, U have used 3.20/4.00 electrode with appropriate current as recommended by the manufactures. The type

electrode, whether it is E 7018 B2L or E 8018 B2L do not make any difference and nothing to do with your  L F problem.. Use 3.2 initially and then

4.0 mm for  full fusion.

 

Repair welding is a specialty unlike normal joint welding. Apart from  preheating, grinding the defective area, use of some excessive (5 % or so)

current, grinding the initial repair weld, checking with DP if required are all important.

Repair welding requires a separate procedure update. Fill up  at edges to get good fusion.  If required, the initial  pass and  full repair welding

could be carried out with TIG also as each bead  below the next run gets normalized /tempered  and forming fine grain structure. But the choice

is yours.

Hence grind the repair area to provide free flow of weld metal. Check the current  and weld layer by layer, cross checking in between  .

I am sure the repair welding will come out well to pass the x-ray Test.

Sridhar.

-----------------------------------------------------------------------------------------------------------------------------------------------------------------

From: sudalai kannan <suda...@gmail.com>