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[Source] Leaded brass or copper sheet


#1

Yes you read that correctly. I am looking for brass and copper
alloyed with lead.

I am doing a research project, for my own gratification, whereI have
found that I need to get some thin sheets of leaded brass and
hopefully, leaded copper. I have found suppliers but the thinnest is
1/16th of an inch thick. So I thought that before I order, I wanted
to ask here on this forum if anyone might have a source for leaded
brass and/or copper in about 24 to 30 gauge. I only need a few
square inches of each. I was hoping toavoid having to roll my own
sheet as I am unsure how safe it is to anneal these metals several
times to get it that thin.

Thanks in advance!
Gerald A. Livings


#2

Leaded brasses are made for rapid machining. They are hot short so
annealing to a red heat will ruin them.

you will have to roll your own if you want to go less than 1/16thin.

experiment is the way to find out.

got a mill?


#3

Thanks for the info Ted. I will find a friend with a mill. But can
you explain what “hot short” means? I have never heard that term
before.

Gerald A. Livings


#4
what "hot short" means 

Al Balmer


#5

Someone asked what does hot short mean? it refers to free machining
brasses that are alloyed with up to 6 % lead. When heated to a cull
red heat, the lead precipitates out at the copper crystal boundaries
and if hammered hot will crack up like a carrot.


#6

What % lead content are you looking for ?


#7

I ended up purchasing a strip that was 3% lead. I will be rolling it
down this week to sheet. thanks for the info!

Gerald A. Livings Livingston