Metallurgy for the masses The big question to be answered is which metal is stronger. Steel trailer supporters like to point out that steel has a reputation of being one of the toughest common alloys, while aluminum is more commonly known for its use as foil or pop can material. However, the aluminum used in all-aluminum trailers is an alloy, the same way that steel is an alloy of iron. This alloy has about the same yield strength as steel! It contains at least 95 percent aluminum, and the other five percent is composed of copper, titanium, chromium and zinc. Other metals are also added in trace amounts to further refine the alloy's properties. High maintenance Both kinds of trailers require upkeep, but the biggest issue with aluminum trailers is simply lubricating the hinges and cam latches. You'll also want to make sure to wash out the interior, since horse urine, for example, is corrosive. For cosmetic purposes, an aluminum trailer should be given an acid bath every couple of years to clean and renew its exterior. Steel trailers, on the other hand, must be examined often in order to prevent rust. Any scratches in the paint need to be [...]
