Could it be the layer of oxidation? I'm not a Chemist either, but I do play with molten metal every once in a while, and I know that if brass has been exposed to the weather, it is harder to melt and leaves a lot of 'scrap'. So I would think that the zinc might form an oxide and not be 'eaten'. Just my two cents.
Terry Griner -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Harry Wade Sent: Monday, November 27, 2006 3:03 PM To: Small-scale live steam discussions Subject: Re: [SSLiveSteam] MATERIAL FOR BOILER FITTINGS At 05:31 PM 11/27/06 +0100, you wrote: >I am also no Chemist, but It does make me sit back and ask questions as >to why does one brass boiler break down and another of the same age and >usage by the same manufacturer still look like new? - Bert Bert, Inexplicable, as I said in my first post, some things (boilers, fittings, etc) in brass seem to go on indefinitely while others split or crumble within weeks. There is no predictable behavior. Regards, Harry _______________________________________________ SSLiveSteam mailing list Send messages: [email protected] Cancel subscription: http://postfix.45mm.com/mailman/listinfo/sslivesteam Rules: http://www.45mm.com/sslivesteam_guide.html _______________________________________________ SSLiveSteam mailing list Send messages: [email protected] Cancel subscription: http://postfix.45mm.com/mailman/listinfo/sslivesteam Rules: http://www.45mm.com/sslivesteam_guide.html
