Neal Lewis Posted January 8, 2015 Report Share Posted January 8, 2015 This original brass water supply pipe is in a 1940's house. I've seen miles of this stuff but never before saw this I.D. on the pipe. Does it mean the pipe is 67% brass? The pipe looked so clean and untarnished as if it just rolled out of the factory. There was no corrosion or pitting on any of the brass piping. Unusual for that vintage. Click to Enlarge 35.34 KB Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted January 8, 2015 Report Share Posted January 8, 2015 Brass is an allow made from copper and zinc. 67% copper is the minimum for piping (yellow brass). The good stuff is 85% copper (red brass). Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted January 8, 2015 Report Share Posted January 8, 2015 If the cheap stuff looks that good at 75, does one really need the good stuff? Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted January 8, 2015 Report Share Posted January 8, 2015 If the cheap stuff looks that good at 75, does one really need the good stuff? I've seen a lot of bad 75 year old Anaconda yellow brass. Quote Link to comment Share on other sites More sharing options...
mjr6550 Posted January 9, 2015 Report Share Posted January 9, 2015 Here is everything you need to know about brass pipe: https://ia801408.us.archive.org/17/item ... idrich.pdf Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted January 9, 2015 Report Share Posted January 9, 2015 Here is everything you need to know about brass pipe: ...if we were selling it! Interesting though. Quote Link to comment Share on other sites More sharing options...
Rob Amaral Posted January 10, 2015 Report Share Posted January 10, 2015 Water quality seems to come into play... the 'yellow' brass I see around here is usually never in good shape.. the red brass does tend to stand up better... Quote Link to comment Share on other sites More sharing options...
mlparham Posted January 10, 2015 Report Share Posted January 10, 2015 Water quality seems to come into play... the 'yellow' brass I see around here is usually never in good shape.. the red brass does tend to stand up better... Both yellow brass and red brass alloys can be modified by small additions of other elements. For example the addition of aluminium to yellow brass will greatly increase its corrosion resistance for certain applications. An aluminum enhanced yellow brass may outperform a standard red brass, depending on the application. When specifying metal products always reference a standard rather than using generic names. Always consider not only the loading conditions but also the environment and stray electrical currents that the product may experience. When in doubt consult with an engineer. Quote Link to comment Share on other sites More sharing options...
kurt Posted January 10, 2015 Report Share Posted January 10, 2015 I never see brass, so I'm curious. If there was any concern whatsoever with condition, why wouldn't one just cut out the brass and replace it? Quote Link to comment Share on other sites More sharing options...
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