2.4602
2.4602, Alloy C22, Böhler L022
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.
Application examples
| Comp. for Chemical plants (incl. LNG, FGD, Urea, LDPE, etc.) | Components for Recycling Industry |
| Comps. for Food processing and Animal Feed | CPI (incl. LNG, Urea) |
| Distributors for Component Applications | Distributors or producers of standard parts without knowledge of final applications |
| Fine Blanking, Stamping, Blanking | Flowlines & Connectors |
| Forging Applications | General Components for Mechanical Engineering |
| Gravity / Low Pressure Die-Casting | Heat Exchanger |
| Oil & Gas | Other Components |
| Other Oil and Gas + CPI comps. | Paper and Pulp Industry / Printing |
| Storage technology | Tubular Products, Flanges, Fittings |
| Valves and Actuators |
| Material: 2.4602/ Alloy C22 | UNS: N06022 | AISI: |
| DIN EN: DIN 17744 / DIN 17752 | VdTÜV Datasheet: VdTÜV WB479 | Others: ASTM B574 ASME-SB-574 |
| C | Si | Mn | P | S | Cr | Mo | Ni | V | W | Co | Fe |
| max | max | max | max | max | 20,0 to | 12,5 to | REM | max | 2,5 to | max | 2,0 to |
| 0,010 | 0,08 | 0,5 | 0,025 | 0,010 | 22,5 | 14,5 | REM | 0,35 | 3, 5 | 2,5 | 6,0 |
IMPORTANT DOCUMENTS
All information on the properties and recommendations on the usability of the material and its forms of delivery are given after careful research and to the best of our knowledge. However, no guarantee can be assumed. In the case of an order, they always require a special written agreement.
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