It can also be created in Rotary Macerator by placing Copper Ore in the top left slot and Tin Ore in the top right slot. The Macerator will create 2 Bronze Dust and use one Copper Ore each go-around, using one Tin ore every third, as per the recipe. If you pull the Tin ore out early, it will 'eat' one of the ores.
The Bronze Dust can then be smelted into Bronze Ingots.
Bronze ingots can be used in the creation of Bronze Armor and Bronze Tools (30% more durable than Iron). The tools break the same blocks at the same speed as Iron tools. Bronze also is used to craft the important Wrench (IndustrialCraft), which is used for dismantling machines. It has an EMC value of 255, which is strangely lower than an Iron Ingot or a Tin Ingot .
Note: Bronze could previously be crafted with Ingots, but as Forestry was removed, this is no longer possible.