E7018-GH4R

[limesh M]

Dear All,

 

Is there any electrode in the name of E7018-GH4R and what is the SFA No?

 

 

Regards,

 

Limesh

[Karthik]

Hi, E7018-GH4R - SFA No. - 5.1 Kobe LB52-18 G is a general specification H4R is an optional supplementary designator, as defined in AWS A5.1 (Specification for shielded metal arc welding electrodes). Basically, the number after the "H" tells you the hydrogen level and the "R" means it's moisture resistant. "H4" identifies electrodes meeting the requirements of 4ml average diffusible hydrogen content in 100g of deposited weld metal when tested in the "as-received" condition. "R" identifies electrodes passing the absorbed moisture test after exposure to an environment of 80บF(26.7บC) and 80% relative humidity for a period of not less than 9 hours. The H4R suffix is basically just additional information printed on the rod, and does not necessarily mean a change in an electrode previously marked E7018. E7018-GH4R - SFA No. - 5.1 Kobe LB52-18 Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Tue, 10/12/10, limesh M <lime...@gmail.com> wrote:

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[kambiz zamani]

No,H4R AT SUFFIX IS CORRECT,BUT FOR THIS CASE "G" SUFFIX IS USELESS. BEST REGARDS K.ZAMANI NDEC QA/QC MANAGER

--- On Tue, 10/12/10, limesh M <lime...@gmail.com> wrote:

From: limesh M <lime...@gmail.com> Subject: [MW:0] E7018-GH4R To: "Materials & Welding" <material...@googlegroups.com>

[Sridharan Chandran]

Hi,

I note there is an 'typo' error it should be SFA 5.5 or AWS 5.5 for E7018-G electrodes not 5.1.

"G" - General Specification (as per SFA 5.5 Table 2.2 fotenotes):
In order to meet the alloy requirements of the “G” group, the undiluted weld metal shall have the minimum of at least one of the elements listed in this table (Table 2 of SFA 5.5). Additional chemical requirements may be agreed to between supplier and purchaser.

Regards
Sridharan

2010/10/12 Karthik <karth...@yahoo.com>

[Karthik]

Hi, Mr.Sridharan is correct.   If it is E7018-GH4R - SFA No. - 5.5 - KOBE NB-A52F   if it is E7018-H4R - SFA No. - 5.1 - KOBE LB-52-18   Thanks & Regards,   (Karthik)

Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282

--- On Tue, 10/12/10, Sridharan Chandran <sridharan...@gmail.com> wrote: