HastelloyC-22 alloy
Classification:
- Product Description
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- Commodity name: HastelloyC-22 alloy
Hastelloy C22 alloy is suitable for various chemical process industries containing oxidizing and reducing media. The high content of aluminum and chromium makes the alloy resistant to the erosion of chloride ions, and the tungsten element also improves its corrosion resistance. Hastelloy C22 is one of only a few materials that can resist corrosion from wet chlorine, hypochlorite, and chlorine oxide solutions. The alloy is significantly corrosive to highly concentrated chlorinated salt solutions (such as ferric chloride and cupric chloride).
Product Details
Hastelloy C-22(UNS N06022/W. No.2.4602) Chemical Composition Alloy % Ni Cr Fe Mo C Mn Si S P Co V W C- 22 Min. Allowance 20.0 2 12.5 2.5 Max. Allowance 22.5 6 14.5 0.0015 0.5 0.08 0.02 0.02 2.5 0.35 3.5 Physical Characteristics Density 8.9g/cm³ Melting point 1325-1370 ℃ Minimum values of the mechanical properties of alloys at room temperature Typical mechanical properties Tensile strength Rm N/mm² Yield strength RP0.2 N/mm² Elongation A5% Test temperature Test ℃ solution treatment 690 283 40 Normal temperature Characteristics
Hastelloy C22 alloy is a versatile molybdenum-tungsten alloy, which has better overall corrosion resistance than other existing nickel-chromium-molybdenum alloys, including Hastelloy C276.C4 alloy and 625 alloy. Hastellov C22 alloy has good resistance to pitting, crevice corrosion and stress corrosion cracking. It has excellent resistance to oxidation of aqueous media, including wet chlorine, nitric acid or mixed acids of oxidizing acids containing chloride ions. Hastelloy C22 alloy has the ability to resist various chemical environments, including strong oxidizing substances, such as ferric chloride, copper chloride, chlorine, thermal pollution solution (organic), formic acid, acetic acid, acetic anhydride, seawater and salt solution. Hastelloy C22 alloy has the ability to resist the formation of grain boundary precipitation in the welding heat affected zone, so that it can adapt to many kinds of chemical process applications in the welding state.
metallographic structure
Hastelloy C22 is a face-centered cubic lattice structure.
Corrosion resistance
Hastelloy C22 alloy is suitable for various chemical process industries containing oxidizing and reducing media. The high content of aluminum and chromium makes the alloy resistant to the erosion of chloride ions, and the tungsten element also improves its corrosion resistance. Hastelloy C22 is one of only a few materials that can resist corrosion from wet chlorine, hypochlorite, and chlorine oxide solutions. The alloy is significantly corrosive to highly concentrated chlorinated salt solutions (such as ferric chloride and cupric chloride).
Scope of application
Hastelloy C 22 Other application areas:
1. Acetic acid/acetic anhydride; 2 Acid leaching; 3. Cellophane manufacturing 4. Chlorination system; 5 Complex mixed acid 6 Wheels for electrogalvanizing tank; 7 Expansion bellows 8. Flue gas cleaner system; 9. geothermal well; 10 Hydrogen fluoride furnace cleaner; 11. Incineration cleaner system; 12 Nuclear fuel regeneration; 13. Pesticide production 14 Phosphoric acid production; 15 Pickling system 16. Plate heat exchanger; 17 Selective filtration system; 18. Sulfur dioxide cooling tower; 19. Sulfonation system 20. Tubular heat exchanger; 21. Surfacing valve
Key words:
HastelloyC-22 alloy
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