02 Materials and Methods
Steel vs Aluminum Properties
Steel Properties
– Steel is 3X Heavier than Aluminum
– Weight is Approximately 43 lbs per Cubic ft
– Cost 55¢ per lb
– Cost to Galvanize 40¢ + Handling
– Steel is much Stiffer as measured by Elements of Elasticity
Aluminum Properties
– Aluminum is 3X Lighter than Steel
– Weight is Approximately 14 lbs per Cubic ft
– Cost $2.05 per lb
– Cost to Galvanize 40¢ + Handling
– Alumina is the most abundant metallic element in the Earth’s crust
– Aluminum has the highest strength-to-weight tensile ratio than any other construction metal
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