6 Facts About Metal Everyone Thinks Are True
Cost, manufacturing parameters, durability, and appearance are the main things that determine whether a material is a good cladding choice of not.
When doing cladding, most use steel and aluminum. It also includes stainless steel and weathering steels. IN certain circumstances, copper, bronze, and titanium cladding are also used.
When people choose materials for cladding, they would often choose steel and aluminum. There is an extensive use of steel and aluminum if all of the classifications of metal cladding. If you were to compare both steel and aluminum, their strength, durability, and cost of materials will provide you with the basic differences.
Before panel manufacturing steel cladding, they are first pre-galvanized and pre-painted in coil form. When steel is galvanized it produces a hard, durable outer layer since it is first dipped in molten zinc or zinc aluminum alloy, then bonded with metallic coating. When the thickness of galvanized steel is measure, it is expressed as the weight of zinc or zinc aluminum per square meter on both sides of the sheet. The typical coating weight on cladding panels are 275g/m2 for zinc and 255g/m2 for zinc aluminum. You should use zinc aluminum alloy in polluted or coastal areas because it has better durability. The corrosion performance on premium pre-finished metals are improved. In order to improve appearance and durability the steel is coated with a variety of finishes. With premium coating, you get a tough and durable steel panel. Outside of the sheet they may be difficult environmental conditions that exist. But, the underside of the sheet may be subjected to condensation and trapped moisture so it is normal to apply coating to this face at various specifications to suit both cost and environmental conditions.
Aluminum is known for its corrosion resistance. Bare aluminum reacts rapidly with oxygen to form a hard, dense layer that inhibits further corrosion. Aluminum used for cladding is an alloy that is combined with magnesium and manganese. Aluminum has sufficient durability on its own but it can be improved by adding an organic or metallic coating.
You cannot compare easily the merits of steel and aluminum. This often depends on the particular circumstances. Aluminum is inherently more corrosion resistant than steel, but painted steel is durable. Aluminum is lighter but not as strong as steel so profiles have to be deeper or thicker to span the same distances between purlins.
Because of the greater amount of energy it requires to produce aluminum compared to steel, it make it more expensive. Steel resists impact more than aluminum so when there are temperature changes, steel move less than aluminum. When there is fire, steel performs better than aluminum because of its higher melting point. There are certain types of aluminum panels that can be formed more easily than steel due to its low melting point.