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Tips, Techniques, and Questions -- Technical questions or tips |
2006-12-09, 12:44pm
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trying to follow along
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Join Date: Jul 26, 2005
Location: Duncan Oklahoma
Posts: 649
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Mandrels from welding supply
I've search the site and can't find the answer... I bought a canister. The canister says Code-Arc 7018MR
They all have a coating on them. I does come off with a bit of work which usually results in slightly bending the mandrel (what is the real name for these things any way? I mean what do they call them at the welding supply store?) so what is this stuff? is there an easy way to remove it? and what do I look for so I don't get this again?
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Camie
mama to A, C, D, E, F & H
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2006-12-09, 12:48pm
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Missing presumed fed
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Join Date: Nov 15, 2005
Location: Wherever
Posts: 3,158
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I don't know what you bought, but what you look for is TIG (pronounced tig, not t-i-g) welding rods, 316L by preference but 308L is OK, in your chosen diameter -- 3/32 and 1/16 inch are most common. TIG welding rods have no coating.
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Scorpion and one Intensity 10 lpm 20 psi concentrator
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2006-12-09, 12:49pm
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Tinder Bloom Studio
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Join Date: Nov 08, 2006
Location: NE Ohio
Posts: 939
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I think you got the rods that are used for arc welding. They are coated with mnaganese(?) maybe...I can't remember but I don't think those are the right type of rod for bead making...
My hubby jut picked up some stainless steel welding rods and the come without any coating on them. I'm a bit of a newbie also altthough I took welding about a decade ago but 2 kids have erased most of my memory before them!!lol!!
I'm sure someone else will chime in .
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2006-12-09, 1:06pm
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Gentleman of Leisure
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Join Date: Jun 10, 2005
Location: A Little Bit West of Yosemite Valley
Posts: 5,200
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7018 is not a practical welding rod to use for mandrels...
7018 low-hy, low penetration, on all positions, with AC or DC current. Use the highest amp setting as practical. Use a straightforward "drag" progression with a "short arc." The low moisture make-up of this welding rod reduces chemical reactions in the weld itself and makes for the highest quality x-ray perfect welds.
What you want is 308L or 316L stainless steel "filller rod" used for gas or tig welding... Should be silver in color and have no coating! Many times have rod "numbers" stamped near end of rod.... Generally comes in tubes about 3ft long and in 1 pound or 5 pound tubes
Caution do not mistake tig "electrode" for filler tod...
Dale
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San Francisco - A Few Toys Short of a Happy Meal
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2006-12-09, 10:13pm
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Corgi Cult Member
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Join Date: Jan 10, 2006
Location: Central Illinois
Posts: 3,723
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The welding store that I go to keeps the steel rod in the back. I have ask to get it.
In our area, not every place that carries welding supplies stocks the stainless rod.
Kathy
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Kathy
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2006-12-10, 12:17pm
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trying to follow along
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Join Date: Jul 26, 2005
Location: Duncan Oklahoma
Posts: 649
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Thank you Emily and Dale! now I'm on the hunt!
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