There is a reason why Superman is called "The Man of Steel" rather than "The Man of Aluminum". Steel is a stronger, heavier option for gates, fences, and railings.
There are applications that aluminum is the better choice, but they are rare. Aluminum became a popular material in aviation and boat building because of its light weight and its non corrosive properties.
In construction however, strength, weight, and density will always be en vogue. A lot of people are misguided that steel corrodes faster and requires more maintenance. I have one term: hot dipped galvanized. This treatment of black steel essentially makes it rust proof. You can witness this time tested durability in chain link fencing. You get all the attributes of aluminum without the sacrifice of strength or weight. In short, aluminum gates just feel less substantial.
So, the next time you are weighing out your material options, consider treating your new steel gates with a "hot dip", you will never regret it.
