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Hi Ironman6626!
First of all, "Weldcome" to the forum!!! :)
E11018 does not run just like E7018... Only similar to E7018 in that it is a Low Hydrogen electrode. :)
The slag composition once welded is much softer than an E7018 electrode so, it is important that one takes great care in cleaning the toes, restarts of each pass... Understanding this will also help you understand that there's less tolerance allowed in the arc length when welding with an E11018 rod as compared to an E7018 electrode... Make Darn sure your preheat temperature for that material is correct and constantly monitor your interpass temperature. throughout every bead deposited - especially on a test!!! The metal flows a little more when welding with E11018... Make sure you hold your sides long enough that the molten slag starts to flow from the sides of the flux coating of the electrode in order to eliminate any undercut... Clean each bead with a flashlight because the slag can fool you into believing that you got rid of all of it in bad lighting.
When weaving, do not exceed three times the diameter of the electrode diameter - meaning, if you're using a 1/8" dia electrode then 3/8 of an inch is the maximum width allowed - PERIOD!!! Otherwise your interpass temperature will be so high that it will take longer to come down below an acceptable temperature to continue due to the excessive heat input, and slow travel speed, the possibility of distortion will increase to an unacceptable warpage of the test joint. Then there is the effect of change in the metallurgical composition that can cause the test piece to lose some of the required mechanical properties. So, even though it may weld like E7018 - E11018 has it's own set of quirks
Question: Are they requiring you to also deposit a tempering bead(s) within the cap pass?
See if you can get a hold of some plate of that "Armox", find out the joint configuration and anything else regarding the test, and "practice until the cows come home!!!" I mean heck!!! There can't be that much to do with your spare time over there so - Just Do IT!!!
When you feel you're confident, take the test!!! Hope this helps!!! :) Watch out for them stray bullets!!!
May God Bless you, and everyone on our side that's there!!! :)
Respectfully,
Henry