Re: [MW:7497] E7018-GH4R

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 <karthik6684@yahoo.com>

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 <limesh78@gmail.com> wrote: From: limesh M <limesh78@gmail.com> Subject: [MW:0] E7018-GH4R To: "Materials & Welding" <materials-welding@googlegroups.com> Date: Tuesday, October 12, 2010, 2:42 PM Dear All,   Is there any electrode in the name of E7018-GH4R and what is the SFA No?     Regards,   Limesh -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ 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.

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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.