VDM® Alloy 31 (1.4562/N08031)

VDM® Alloy 31 is an iron-nickel-chromium-molybdenum alloy with the addition of nitrogen. The alloy developed by VDM Metals closes the gap between high alloyed austenitic special stainless steels and nickel alloys.

Characteristics of VDM® Alloy 31

VDM® Alloy 31 (1.4562/N08031) is characterized by:

outstanding corrosion resistance in alkaline and acidic halide-containing media
excellent resistance to sulfuric acid, even in highly concentrated form
excellent resistance to corrosion and erosion in phosphoric acid media
outstanding resistance to surface corrosion and local corrosion in chlorine dioxide bleaching plants in paper production
excellent resistance in reducing and oxidizing media as well as in boiling azeotropic nitric acid

Applications of VDM® Alloy 31

Typical fields of application for VDM® Alloy 31 are:

components for flue gas desulfurization (FGD) plants
plants for the production of phosphoric acid via the wet digestion process
pipes and heat exchangers for sulfuric acids contaminated with chlorides
pipes containing ocean water and brackish water, condensers and chillers
pickling plants for sulfuric acid as well as nitric-hydrofluoric acid
treatment of sulfuric acids from waste
evaporation and crystallization of salts
components for the cellulose and paper industry
digestion of ores, e.g. in HIPAL (high-pressure acid leach) plants for the digestion of laterite ores
mineral oil production and refineries
organic acids and ester synthesis
fine chemicals
strain-hardened transport and feed pipes as well as slicklines, wirelines and flowlines in the transport of oil and gas
marine scrubber / ship diesel scrubber
longitudinal welded tubes for waste to energy