The aluminum most commonly used in the general construction and manufacturing industries are 3000 or 5000 series alloys.
But 5000 marine grade aluminum sounds stronger, doesn't it? But does the construction industry generally adopt it? Probably not, why?
1. The disadvantage of the 5000 series is the lack of workability and thermal expansion
When requesting a specific type for a project, engineers and architects must have a clear understanding of the properties, advantages and disadvantages of different grades of aluminum. Such as the 5000 series marine grade aluminum, this aluminum alloy has high tensile strength and strong corrosion resistance, so it is the ultimate choice for shipbuilding or finer decorative details on ships. However, the disadvantage of using the 5000 series on the facade of a building is the lack of workability and thermal expansion compared to the 3000.
2. Aluminum is well formed and the price is cheaper
Because of these issues, fabricated aluminum, such as those used for siding and general building exteriors, is best designed with 3000 series aluminum that forms well (no cracks or breaks) and is relatively The 5000 series, which is less expensive, also has reliable tensile and impact strength. 3000 aluminum is favored by builders and installers for its benefits.