Architectural Titanium

United States

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- story by MaterialDistrict

Titanium is a relatively unknown and new material to choose of for facades, but its popularity is increasing.

The excellent corrosion resistance of architectural titanium results from the formation of a very stable, continuous surface. Because titanium metal itself is highly reactive and has an extremely high affinity for oxygen, a beneficial oxide film forms immediately when exposed to moisture or air. In fact, a damaged oxide film will restore itself instantaneously.

Titanium’s coefficient of thermal expansion is half that of stainless steel and copper and one-third of aluminium. It is virtually equal to that of glass and concrete. Consequently, thermal stress on titanium is very small. The specific gravity of titanium is 4.51, 60% that of steel, half that of copper and 1.7 that of aluminium. Being such a lightweight metal, titanium imposes less burden on structure and permits ease of fabrication.

Depending upon use, it eliminates the need for corrosion-combating expenses and enables further weight reduction. Along with its good mechanical strength, titanium is durable and shock resistant. Architectural titanium can be supplied in a variety of surface finishes and textures, like lineair brushed, smooth surface, textured roll and even a high polished mirror version. The subdued colour of natural titanium is popular due to its unique appearance. Many finishes are available in varying degrees of reflectivity.

Architectural titanium is warranted for one hundred years against through-wall corrosion.

Material Properties