Hi there,
I am planning on making an axe mandrel and an anvil horn. Available steel is either 4140 or 45Si7 which is some kind of spring steel.
It's basically a medium carbon steel with 1,5-2% of Sillicium and 0,5-0,8% Mn.
I've made some scrolling tongs from it and it's a fine steel for that purpose. It appears to be less tough than 1070 or 4140 when used in punches.
If anyone knows a good supplier of 5160 in europe....