Where on earth did you get that from?
Can you give me a URL link?
Brass is basically a copper - zinc alloy anyway.
Agreed beryllium is toxic but over 45 years in electronics I've only ever run across it in various RF hi-power transistors types. Never in a brass alloy.
Academic for me as I buy my brass prop
s from Raboesch in Holland.
They are already balanced and polished anyway!😊
'Chinese' manufacturers not subject to the much maligned EU regulations huh!? Cheers, Doug 😎
BTW People: IF by remote chance your props do contain beryllium DO NOT WORK ON THEM AT ALL. Dispose of them pronto at your local hazardous substances recycling depot.
Above all do not sand or grind them. it's the beryllium oxide dust that's dangerous, that's why safe disposal of busted florescent lamps and the old first generation 'Energy saving bulbs' is also mandatory. YHBW!