Stainless steels are quite difficult to hot roll and manufacture of heavy plate to acceptable tolerances necessitates powerful mills such as quarto mills. The normal thickness range for quarto plate in stainless steel is 15-50 mm but thicker plate is also available. In common with hot-rolled sheet, the starting format is a slab but instead of being is coiled after rolling, quarto plates are manufactured individually and remain flat. As with strip and coil, stainless steel quarto plate requires annealing and pickling after rolling (1D execution). Quarto plate in stainless steel is often used in heavier industrial constructions. Application examples are in machines for pulp and paper processing, marine and off-shore, energy generation and manufacture of chemicals.