Brass Alloy
Apr 13
2011
2011
Why would a heavy brass alloy be chosen over lead for radiation shielding?
I’ve asked this two weeks ago but the question has come up again. For what kind of applications would brass be a better choice?
Brass alloy has a much higher melting point than lead so high temperature applications would be one answer (I guess). That’s all I can think of, though.
It’s a 2 inch sleeve that goes over piping. Why brass alloy and not lead?
I plugged in “two weeks ago” for “before” in the first line. That’s why my grammar looks so bad.
Lead is too reactive in some environments. There are a bunch of metal-metal interactions (although brass participates in many. There are toxicity issues with lead. Brass has more structural strength. Brass is less malleable, so the pipes knocking might wear out lead shielding.
Lead’s major features are density and low cost. You can get the same amount of shielding from a greater volume of other materials. It may well be that the brass sleeves were standard parts and the cost per unit was cheaper than custom lead.
Jewelry Making: Non-Toxic Patina Methods for Brass Stampings, Part One
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