Comparing Aluminum and Galvanized Steel Trailers

Posted: July 8, 2014 in Boats, Parts and Accessories, Shopping, Trailers, Uncategorized, Vehicles
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Boat trailers are commonly made out of either aluminum or galvanized steel, or a combination of both. Both metals resist corrosion that can result from water exposure when a boat is launched or loaded. However, aluminum is lighter, and thus provides more ease in hauling; while galvanized steel is stronger, and thus is more durable under stress.

Aluminum is naturally corrosion-resistant, unlike steel that has to be dipped in zinc to form an anti-corrosive layer. The base element of steel is iron, which has strong oxidizing properties. Aluminum, on the other hand, needs more than three times as much chemical energy as iron to corrode. In addition, at more than half the atomic weight of iron, aluminum is light. Vehicles will have little to no trouble hauling aluminum boat trailers, even with a boat load.

Galvanized steel, on the other hand, is more appropriate for hauling heavier boats. The lightweight properties of aluminum comes at the expense of durability, which means it may succumb under the sheer weight of heavier boats. Galvanized steel trailers can withstand heavier loads better, but may require a more powerful hauler.

Nevertheless, aluminum and iron are compatible metals. Trailers can be made out of both materials to reduce weight and costs while increasing durability and corrosion resistance. As they’re adjacent in the galvanic scale, galvanic corrosion won’t be as immediate as materials far apart in the scale.


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