BÖHLER L022
BÖHLER L022 belongs to the group of highly corrosion-resistant nickel-chromium-molybdenum-tungsten alloys with extremely low carbon and silicon contents. Good resistance to wet media, e.g. sulphuric acid, nitric acid, 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 gas, formic acid, acetic acid, seawater and other salt solutions. High resistance to crevice, pitting and stress corrosion cracking at elevated temperatures under oxidising and reducing conditions. Used in environmental engineering, e.g. in agitators, heat exchangers and spray systems in flue gas cleaning plants and in waste water treatment plants, evaporation plants in chemical process engineering, in chlorine bleaching plants and plants for the production of chlorine gas and hydrogen chloride, e.g. butterfly valves, gate valves, pipelines and centrifuges. Suitable for pressurised containers with wall temperatures from-196°C to 400°C. Due to its good thermal stability, BÖHLER L022 can generally be used in the welded condition without subsequent heat treatment.
Available Product Shapes
Long Products: Presented data refer exclusively to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
Melting Route
VIM + ESR or Airmelted + ESR
Material Numbers
- Market grade
- Alloy C22
- SEL
- 2.4602
- EN
- NiCr21Mo14W
- UNS
- N06022
Standards
- ASTM
- B564
- ASTM
- B574
- Others
- VdTÜV WB479
- Others
- NACE MR0103 / ISO 17945
- Others
- NACE MR0175 / ISO 15156
Chemical Composition
* Chemical Composition (Average %)
- C
- max. 0.010
- Si
- max. 0.08
- Mn
- max. 0.5
- P
- max. 0.025
- S
- max. 0.010
- Cr
- 20.0 to 22.5
- Mo
- 12.5 to 14.5
- Ni
- REM
- V
- max. 0.35
- W
- 2.5 to 3.5
- Co
- max. 2.5
- Fe
- 2.0 to 6.0