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| Tips, Techniques, and Questions -- Technical questions or tips |
2010-11-17, 11:17am
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Grateful
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Join Date: May 14, 2007
Location: David City, Nebraska
Posts: 137
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Is there a difference between red brass and yellow brass?
Hi Everybody,
I've been reading about how brass bubbles when it is used in lampworking and I noticed that there is red brass and yellow brass. Red brass is 85% copper 15% zinc and yellow brass is 70% copper 30% zinc. Is there a difference in the two when used in beads? Thanks for you help with this.
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Michelle
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2010-11-17, 12:10pm
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Senior Member
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Join Date: Sep 15, 2005
Posts: 380
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Good question, I didn't know that!
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2010-11-17, 1:11pm
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Senior Member
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Join Date: Jun 11, 2005
Location: SUNNY FLORIDA
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I do know that copper fumes are poisonous.
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Now reopened in South Florida!! 
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2010-11-17, 1:21pm
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Ass-kicking Cephalopod
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Join Date: Jun 19, 2006
Location: Duh, Squidville
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Quote:
Originally Posted by PaulaD
I do know that copper fumes are poisonous.
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Zinc is way worse than copper too. That's one of the reasons it's important you encase it before putting it in the flame!
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DOG is my co-pilot
Cricket w/two 5 lpm oxycons - and sometimes a Minor.
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2010-11-17, 3:51pm
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honorary bead lady
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Join Date: Jan 14, 2008
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The zinc in the brass is what makes the bubbles
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"bead ladies are absolutely nuts. and pink makes them crazier" Ali Vandegrift
Nortel Major (Ok, Ok so I only use the Minor on top)10l Regalia
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2010-11-17, 3:57pm
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Cat Winx
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Join Date: Mar 02, 2009
Location: the Great Pacific Northwet
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You think it's bad to melt into beads... don't even think about welding galvanized (zinc) anything.. and both brass and copper are metals to weld with great caution and lots and lots of ventilation (and it will still give you a weird taste in your mouth for a couple of days... pthahhh! (sorry.. bad flashbacks.. hehehe pun intended.. for any welders out there  )
~Rachel
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2010-11-17, 7:25pm
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Senior Member
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Join Date: May 31, 2009
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Zinc fume fever is like the flue. I hate it. I hate it. I hate it.
I won't heat zinc unless I'm wearing a mask or I'm outside with a strong fan and hopefully some wind.
I have noticed milk and naproxen sodium take the edge off it.
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Melting boro with a National 3A and and two Devilbiss 5lpm 10psi concentrators.
My Etsy
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2010-11-17, 8:35pm
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Cat Winx
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Join Date: Mar 02, 2009
Location: the Great Pacific Northwet
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Meker.. I totally hear ya.. we were working in a shop with a huge industrial fan doors open from both ends of the shop (even if winter) and a back vented hood..
I also seem to recall we discovered milk did help although I'd never heard of the naproxen.. thanks for the tip!
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2010-11-17, 9:30pm
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Grateful
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Join Date: May 14, 2007
Location: David City, Nebraska
Posts: 137
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So-I'm thinking the red brass has less zinc-maybe it will have smaller bubbles? 
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Michelle
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