Easy Scrap Identification - Aluminum VS Magnesium

**RLS0812** · 10-17-2018, 02:51 PM

Sorry About the bad lighting in this video

**msmoorad** · 10-17-2018, 05:14 PM

my yard buys what u call magnesium as zinc- i dont mind bcos they pay quite a bit more for zinc.
aluminium pays R14 per kg and zinc about R19 pr kg(same price as alum extrusion)

**Snowman18** · 10-17-2018, 07:07 PM

Originally Posted by msmoorad

my yard buys what u call magnesium as zinc- i dont mind bcos they pay quite a bit more for zinc.
aluminium pays R14 per kg and zinc about R19 pr kg(same price as alum extrusion)

That's because what he is showing as magnesium is actually die cast also known as pot metal, magnesium is much lighter than aluminum.

And die cast is heavier than both aluminum and magnesium.

**DakotaRog** · 10-17-2018, 10:05 PM

That's because what he is showing as magnesium is actually die cast also known as pot metal, magnesium is much lighter than aluminum.

And die cast is heavier than both aluminum and magnesium.

Yeppers!! Surprisingly, for as much as I used to hear about "pot metal" when I was younger, I don't really come across it much working my various finds. Maybe its cheaper to use straight cast alum for a lot of things then dinking with zinc and a stew pot of whatever...

https://en.wikipedia.org/wiki/Pot_metal