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| Tips, Techniques, and Questions -- Technical questions or tips |
2005-08-11, 3:51pm
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Senior Member
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Join Date: Jun 14, 2005
Location: Chilliwack, BC
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Mandrel Question
Hi
K I was just at my welding store where I get my rods for mandrels and the ones I have been buying are steel not stainless steel. I had thought along that my mandrels were SS. (steel ones are magnetic and SS are not) Does it make a difference? Which ones are best?
Thanks
Cathy
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2005-08-11, 4:41pm
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Professional Bead Pimp
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Join Date: Jun 11, 2005
Location: Gainesville & Cape San Blas, Florida
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Actually, certain grades of SS are magnetic. But, the better grades of SS are not magnetic.
If they were steel, I don't think that they'd last very long in the flame.
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"Another Analog Brain in the New Digital World" - me
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2005-08-11, 4:55pm
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The Crazy One
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Join Date: Jun 05, 2005
Location: Lococabana, OR
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I use TIG 308 or 316. Might be a L after the numbers, I just know where they are in the welding store I go to! 
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loco
Still crazy after all these years...
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2005-08-11, 5:01pm
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Join Date: Jun 14, 2005
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Thanks
Not last long, figures...
The ones I got are 048 or 098 and there is no L after them. K back to the welding store. lol
I really do appreciate this!!
Cathy
Cathy
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2005-08-12, 10:07am
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Senior Member
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yeah I made three beautiful beads on my steel madrels...the bead release cooked on the madrels ( really cooked on was wrenching with pliers and it did not come off) and the beeds were on there for good. I even reefed so hard I bent the madrels. Well I soaked them in hydrogen peroxide for the night and not can wrench them off. First thing I did this morning was head to the welding store. So now I have a bunch of wire for hat pins. lol
Cathy
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2005-08-12, 11:45am
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I'm a lilac!
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Join Date: Jun 09, 2005
Location: Portland, Oregon
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A word of warning; I bought a bunch of 1/16" 312 stainless for mandrels on the advice of my welding shop guy and the stuff is CRAP. It bends when you introduce it to the flame. I had them for sale for a while before I figured it out, so if anyone bought any bendy mandrels from me (like, they literally bend while you're making a bead) please let me know so I can replace them. I don't actually know if I sold any before I caught it, but just in case I did...
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-Kalera
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2005-08-12, 2:15pm
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Life in the slow lane
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Quote:
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Originally Posted by Kalera
A word of warning; I bought a bunch of 1/16" 312 stainless for mandrels on the advice of my welding shop guy and the stuff is CRAP. It bends when you introduce it to the flame. I had them for sale for a while before I figured it out, so if anyone bought any bendy mandrels from me (like, they literally bend while you're making a bead) please let me know so I can replace them. I don't actually know if I sold any before I caught it, but just in case I did...
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Is the problem that they were 312 instead of 308, 309, or 316? Weird.
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Starlia
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2005-08-12, 2:44pm
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Professional Bead Pimp
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No, it isn't the particular alloy that causes this. Wire, like mandrels, is drawn hot through dies to size it.
I would suspect that the bending when heated is because the drawing process caused uneven stress in the wire. When heated, this stress causes it to bend slightly.
The die might have had a rough spot in it, which caused extra friction there, changing the stress.
A funny story about mandrels. I ordered about ten 48" long 1/16" ones from my distributor. When the order came in, I noticed that there was no way the box was 48" long, so I wondered if they had cut them. To my surprise, they had bent them severely to get them in the box 
Also, the 316 alloy is the best.
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"Another Analog Brain in the New Digital World" - me
"The fact that nobody understands you doesn't make you an artist" - PopCap Zuma game, Level 12-7
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2005-08-12, 4:24pm
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Senior Member
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316 cool now where are those darn cut off ends
 X cheesey
Cathy
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2005-08-12, 5:30pm
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Irish Eyes A Smiling
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When starting with SS welding rods - make sure you grind for the rounded point - makes it a lot safer when you reach into that drawer as well as getting rid of those nasty barbs from snipping the rod! Also make sure you are wearing safety glasses when cutting the metal (or glass rods for that fact).
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Lynn
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2005-08-16, 4:59pm
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Quote:
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Originally Posted by BillBrach
No, it isn't the particular alloy that causes this. Wire, like mandrels, is drawn hot through dies to size it.
I would suspect that the bending when heated is because the drawing process caused uneven stress in the wire. When heated, this stress causes it to bend slightly.
The die might have had a rough spot in it, which caused extra friction there, changing the stress.
A funny story about mandrels. I ordered about ten 48" long 1/16" ones from my distributor. When the order came in, I noticed that there was no way the box was 48" long, so I wondered if they had cut them. To my surprise, they had bent them severely to get them in the box
Also, the 316 alloy is the best. |
I was told 316L tig welding was the best.. but I am also having a problem with bending after using a few times... what is the difference because I have 10 lbs of this and I can trade the rest of it if I want...
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2006-01-04, 2:35am
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what's a senior moment ?
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Bumping this up. My son made me a bead display, minus the steel rods,(he didn't know where to get them) to put the beads on and I need to get some of those rods, cut them and put them on the display. So, need to know, what's the best here as I will also make some to use in the flame.
Thanks,
Debbie A.
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Debbie
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2006-01-04, 4:46am
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boro color bender
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316L will out last any other. The L stands for low carbon and it does make a difference. If you can find 320L, let me know... it's really good stuff, but not available at my sources.
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"Truth is, everybody is going to hurt you; you just gotta find the ones worth suffering for." -Bob Marley
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2006-01-04, 10:36am
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what's a senior moment ?
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Join Date: Jun 14, 2005
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Thank-you kindly Brent ! I'll tell hubby to ask the welder about the 320L and will let you know ! He's going over there tomorrow (I hope !).
Thx,
Debbie A.
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Debbie
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