[TheForge] metalworking question- soldering brass

[James Binnion]

Copper phosphorous "solders" are technically braze alloys as they melt  
at over 850F They owe their low melting point to the copper  
phosphorous eutectic @ 1317 F. I have not seen any use of cadmium in  
them but it is always a good idea to verify with a MSDS.  Over at  
Harris website http://www.harrisproductsgroup.com/consumables/msds.asp  
there are spec sheets for their alloys . Most manufacturers have such  
info on the web now.

Jim


On Jan 21, 2010, at 10:50 PM, Jerry Frost wrote:

> Yeah, cadmium is a good thing to be afraid of, it's BAD stuff.
>
> Jim: I just tossed out a thought about the folk who make Phos copper  
> solder
> and such, might make one to match brass. Am I right assuming these  
> would or
> could be a Braze Alloy, potentially containing cadmium?
>
> If yes, what a perfect example of why a person should be very  
> careful about
> just tossing out ideas.
>
> Frosty the Lucky.
> -------------------------
> If it ain't forged
> It ain't real
> wrought iron is
> The Frostworks
>
>
>
> ----- Original Message -----
> From: "James Binnion" <jbin at well.com>
> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Wednesday, January 20, 2010 3:59 PM
> Subject: Re: [TheForge] metalworking question- soldering brass
>
>
>> No, not if you mean true solders that melt below 850 F, but many
>> industrial silver solders (braze alloys) do. Most jewelry grade  
>> silver
>> solders (braze alloys) have been reformulated to be cadmium free but
>> many gold solders (braze alloys) still contain cadmium.
>>
>>
>>
>> On Jan 20, 2010, at 3:39 PM, Andy Gladish wrote:
>>
>>> James, do common plumbing solders have cadmium in them? I wasn't  
>>> aware
>>> that it was used at all...frightening!
>>> ______________________________________________________________
>
>>
>> James Binnion
>> jbin at well.com
>>
>
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James Binnion
jbin at well.com