Recycle your cans. Tin and steel cans save a lot of energy if they are recycled. Reclaiming one ton of steel or tin saves 1.5 tons of ore. Tin recycling saves an estimated 2,600 kilowatt hours per ton. Steel recycling saves and average of 4,300 kilowatt hours per ton or 47% of the energy required to process steel from raw materials. Remember, there is no limit to the number of times you can recycle metal.