At sea, the material demands are extremely high, for the materials are exposed to the most adverse environmental conditions around. The corrosive seawater and the highly abrasive mix of crude oil, gas, and sand cause extremely high wear, under great pressure and at high temperatures.

Components from various areas that are subject to high stress include, for example, couplings, seals, pump housings, and desalination rings.

In this area, only those special materials are used which can withstand the mechanical and chemical demands. Most of all, these materials exhibit outstanding corrosion resistance, the ability to withstand stress corrosion, and good mechanical properties at temperatures up to 550°C.