Application Segments

Oil & Gas/CPI

Melting Route

VIM + ESR or Airmelted + ESR

Product Description

BÖHLER L022 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum-tungsten alloys with extremely low carbon and silicon contents. The material is characterised by excellent resistance in oxidising and reducing media, even at elevated temperatures. The alloy offers good resistance to wet media, e.g. sulphuric acid, phosphoric acid, nitric acid, chlorine gas, acid mixtures of sulphuric acid and oxidising acids with chloride ions. Recommended for use in the presence of strong oxidising agents such as iron(III) and copper(II) chlorides, chlorine, formic acid, acetic acid, seawater and other salt solutions. A special feature is the high resistance to crevice, pitting and stress corrosion cracking at elevated temperatures under oxidising and reducing conditions. Due to its good thermal stability, BÖHLER L022 can usually be used in the welded condition without subsequent heat treatment. Application in environmental technology, e.g. agitators, heat exchangers, blowers, linings and pipelines as well as spray systems, in flue gas cleaning systems for waste incineration plants and power stations, e.g. flaps, slide valves and measuring probes. Use in waste water treatment systems, e.g. pipelines, evaporation plants and in chemical engineering for plants for chlorine gas and hydrogen chloride production, e.g. shut-off valves, slide valves, pipelines and centrifuges. Chlorine bleaching plants, e.g. pipelines, measuring systems. Suitable for pressure vessels with wall temperatures from-196°C up to 400°C.

Property Features

Nickel-chromium-molybdenum alloy with very good corrosion resistance e.g. outstanding resistance to pitting, crevice corrosion and stress-corrosion cracking.
It has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chloride ions.
Also outstanding resistance to reducing aqueous media.

Technical Specifications

Material Numbers

2.4602 N06022 Alloy C22


B564 B574 VdTÜV WB479 NACE MR0103 / ISO 17945 NACE MR0175 / ISO 15156

Chemical Composition

max. 0.010 max. 0.08 max. 0.5 max. 0.025 max. 0.010 20.0 to 22.5 12.5 to 14.5 max. REM. max. 0.35 2.5 to 3.5 max. 2.5 2.0 to 6.0

Chemical composition (average %)

Available product shapes

  • Long Products
  • Plates
  • Semi-Finished Products / Billet



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