Tough Alloy

Tough alloy is one of the most important building materials within NuclearCraft. It is highly durable and can be very useful when radioactive materials are present, which is why it is used when crafting many machines. To obtain Tough Alloy Ingots, simply smelt Tough Alloy Dust in any type of furnace.

Recipe (Shapeless):
As of version 2.3 of the mod, it is made in the Alloy Smelter by this series of craftings:

Iron + 2 Graphite = Steel

Steel + Boron = Ferroboron

Ferroboron + Lithium = 2 Tough Alloy.