Off-Shore Engineering

Construction elements in the petrochemical industry have to be maintenance-free in extreme chemical and climatic conditions. Flanges, screws, nuts and springs in pneumatic valves are coated with Galvano aluminium to lend them a durable finish. In the case of traditionally zinc-plated components, brief hydrocarbon burns may cause embrittlement from molten zinc penetrating into the steel matrix. This can be avoided by using aluminium.

In addition, various corrosion tests demonstrate that aluminium displays maximum strength when compared to cadmium and zinc when used in off-shore applications and under salt-spray conditions; which makes it a very suitable material for components that need to be designed for particularly high resistance.

The aluminium can easily last 10,000 hours in a salt-spray test when used together with another top coating which offers "only" 1,000 hours of protection by itself.

This coating system is ideal for wind turbines. High-strength steel components can thus exhibit a very long service life.

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