Application Segments

Oil & Gas/CPI

Melting Route

VIM + ESR or Airmelted + ESR

Product Description

BÖHLER L059 (2.4605/N06059) is a nickel-chromium-molybdenum material with particularly low contents of carbon and silicon, which has high mechanical strength and excellent corrosion resistance.
The most important properties of BÖHLER L059 are the excellent resistance to a wide range of corrosive media, both under oxidising and reducing conditions, the excellent resistance to chloride-induced pitting and crevice corrosion as well as the insensitivity to stress corrosion cracking and the excellent resistance to mineral acids such as nitric, phosphoric, sulphuric and hydrochloric acid and in particular to sulphuric/hydrochloric acid mixtures.
The alloy is therefore suitable for a wide range of applications in chemistry, petrochemistry, energy and environmental technology, e.g. Plant components for processes in organic chemistry with chloride-containing media, especially when using chloride-based catalysts, plant components in the fine chemicals and pharmaceutical industries, scrubbers, heat exchangers, flaps, fans and agitators for flue gas desulphurisation plants (FGD) in fossil-fuelled power stations and waste incineration plants, SO2 scrubbers for marine diesel engines, components for seawater and concentrated brines, equipment and components for geothermal and sour gas applications, reactors for acetic acid and acetic anhydride, and hydrofluoric acid and sulphuric acid coolers and pipes in geothermal power plants.
Due to the particularly low carbon and silicon content, the material does not tend to precipitate grain boundaries during welding or hot forming.
Optimum properties in terms of corrosion resistance are achieved in the clean, metallic bright state.

Technical Specifications

Material Numbers

Alloy 59 2.4605 NiCr23Mo16Al N06059


17744 17752 B574 B564 NACE MR0175 / ISO 15156

Chemical Composition

Chemical composition (average %)
max. 0.010 max. 0.10 max. 0.5 max. 0.015 max. 0.100 22.0 to 24 15.0 to 16.0 REM max. 0.50 max. 0.3 0.1 to 0.4 max. 1.5

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