Rat Man wrote on Aug 31^st, 2017 at 2:33pm:


Right - thats tungstens one and only disadvantage: If slung and threw away you have to seek, to find and get it back again. Otherwise you become really a really poor man. But when loosing simple stones then you lost only what was lost already long and ever (or in other words: "... then you lost only that what never can go lost. All rocks are kept well by mother earth).

But always running for slung away tungsten (while slinging) makes at least a very lot of "extra mouse meters"

Mersa wrote on Aug 31^st, 2017 at 5:50pm:


Me too - I want to have some more, because to have only four balls any longer (already lost one) and slung them away makes me always extremly nervous.

So slowly I see: Timpas offering to make and sell some small bipointed cylinders perhaps is the fastest and cheapest way to get some, because making cylinders with to points is not so tricky like making perfect round balls. Making them at least for more rounded "glands" then could be done by everybody himself.

The only question then: Is he able to make such bipointed cylinders also from tungsten (type: Heavy metal "class 4" - only "class 4" has density 18,5)?

"class 1" = Tungsten heavy metal of 90,0 % tungsten (+ iron & nickel - density: 17,0)
"class 2" = Tungsten heavy metal of 92,5 % tungsten (+ iron & nickel - density: 17,5)
"class 3" = Tungsten heavy metal of 95,0 % tungsten (+ iron & nickel - density: 18,0)
"class 4" = Tungsten heavy metal of 97,0 % tungsten (+ iron & nickel - density: 18,5)

(Alloys with copper falls not in these "classes" and have a very little reddish color like weak reddisch silver what I find a very "ugly color")



Table / Image from Website of Fa. Negele Hartmetall Technik / Germany:

Mersa wrote on Aug 31^st, 2017 at 7:12pm:


But these "cutters" are made from tungsten carbid what has denstiy 14,5 - 15,0 g/cm3 "only". That's doesn't matter to you?

"Zugfestigkeit" (engl.: tensile strength) of 830 MPa is already (little) more than tensile strength of non-hardend (stainless) steel. So some less hard tungsten would be much more "shoc-resistent" - right when smashed at rocks.