Join Date: Dec 2000
Location: Het rijk van Nijmegen, the Netherlands
Re: edge metals
I'm pretty sure the injection moulding alloy used for Edge trems is Zamak.
It's a blend of Zink Aluminium copper etc. It's the material of choice for die-cast toys. Easy to mould, decent properties, easy to finish.
A machined Aluminium trem would be stronger, by about a factor two, but also three times lighter, leading to completely different flutter characteristics. Check the 1980s Ibanez Allan Holdsworth for one.
A machined steel trem would be overkill (about as heavy as Zamak but six times stronger) very expensive, and without treatment, rust-prone.
A stamped, stainless, hardened steel trem is lighter, and very durable (orig Floyd) but doesn't look as nice.