What is the composition of metal in UK road signs?

Question

I'm just wondering cos I seen some guy in the paper who got caught nicking them for scrap metal.

Answer 1

Aluminium and quite a lot of them are made - or used to be - by the Royal British Legion Industries (the poppy day people). but apparently these signs are starting to be phased out in favour of plastic ones.

Answer 2

Aluminum.  They are light but durable.  They are probably plated with stainless steel so they don't rust.  

Answer 3

Aluminium, you get a good price for recycled ali these days.

Answer 4

Yes, It's Aluminium.

Answer 5

Dalekanium