Product Code : AL-C22-NN-SP
ALLOY22 is a Ni-Cr-Mo alloy containing W and extremely low carbon and Si contents. “The chemical composition of Alloy 22 has been designed ,The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, seawater, brine and many mixed or contaminated chemical solutions, both organic and inorganic. This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi-purpose plants where such “upset” conditions occur frequently. Alloy 22 is also resistant to many reducing media. As a result it can be used for equipment in polyvalent chemical plant where widely varying conditions may be encountered. The very low carbon content of Alloy 22, together with its balanced composition, reduce the tendency to formation of grain-boundary precipitates in the heat-affected zone during welding,thus making it suitable in the as-welded condition for many applications in the chemical process industry.” Alloy C-22 should not be used in service temperatures above 1250° F due to the formation of detrimental phases that form above this temperature.
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Product Information
ALLOY22 is a Ni-Cr-Mo alloy containing W and extremely low carbon and Si contents. “The chemical composition of Alloy 22 has been designed ,The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, seawater, brine and many mixed or contaminated chemical solutions, both organic and inorganic. This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi-purpose plants where such “upset” conditions occur frequently. Alloy 22 is also resistant to many reducing media. As a result it can be used for equipment in polyvalent chemical plant where widely varying conditions may be encountered. The very low carbon content of Alloy 22, together with its balanced composition, reduce the tendency to formation of grain-boundary precipitates in the heat-affected zone during welding,thus making it suitable in the as-welded condition for many applications in the chemical process industry.” Alloy C-22 should not be used in service temperatures above 1250° F due to the formation of detrimental phases that form above this temperature.
Synonyms
Hastelloy C22 Plate Specification
Size：customized
Purity: customized
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Compound Formula | NI/Cr/Mo/Fe |
| Appearance | Metallic solid in various forms (bar, sheet, plate, foil, wires, tubing, powder) |
| Melting Point | 1357-1399 °C |
| Density | 8.69 g/cm3 |
| Electrical Resistivity | 1.215 µΩm |
| Specific Heat | 414 J/Kg·K |
| Thermal Conductivity | 11.1 W/mK (100 °C) |
| Thermal Expansion | 12.4 μm/m·°C (24-93 °C) |
Mechanical properties
| Condition | Yield Strength(Mpa) | Tensile Strength(Mpa) | Elongation(%) | Hardness(HB) | |
| ASTM Min Value | Solution Annealed | 310 | 690 | 45 | |
| Typical Values at RT | Solution Annealed | 402 | 794 | 57 | 197 |
International Standard Comparison Chart
| Material | Round Bars | Plates/Sheets | Pipe/Tube | ||
| Seamless | Welded | ||||
| ASTM | UNS N06022 | B574 | B575 | B622 | B619/B626 |
| ASME | SB574 | SB575 | SB622 | SB619/SB626 | |
| JIS | NW6022 | H4553 | H4551 | H4552 | |
| DIN | 2.4602 | 17752 | 17750 | 17751 | 17751 |
Chemical composition
| Ni | Cr | Fe | Mo | W | Co | V | P | S | C | Mn | Si | |
| min | bal. | 20 | 2 | 12.5 | 2.5 | - | - | - | - | - | - | - |
| max | 22.5 | 6 | 14.5 | 3.5 | 2.5 | 0.35 | 0.025 | 0.015 | 0.001 | 0.5 | 0.08 |
Applications of Hastelloy C22 Plate
organic syntheses
flue gas desulphurization
electrolytic galvanizing
plate heat exchangers
fine chemicals production
incineration plants
pharmaceutical intermediates
combustion-resistant alloy for high pressure oxygen applications
Packing of Hastelloy C22 Plate
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’ Hastelloy C22 Plate is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | Ni Cr Mo Fe |
| Pubchem CID | 57434369 |
