2.4602
- N06022
- HASTELLOY C22
Hastelloy C-22 has exceptional resistance to a wide variety of chemical process environments, including strong oxidizers such as ferric and cupric chlorides, hot contaminated media (organic and inorganic), chlorine, formic and acetic acids, acetic anhydride, and seawater amd brine solutions.
Hastelloy C-22 resists the formation of grain boundary precipitates in the weld heat affected zone, thus making it suitable for most chemical process applications in the as-welded condition.
Mechanical Properties
| Tensile strength: | 800 | N/mm² |
| Yield strength 0,2% : | 407 | ≥ N/mm² |
| Elongation: | 57 | ≥ % |
| Hardness HB30: | 93-95 | ≤ HB |
Chemical Composition
Nickel
Ni
Balance
Carbon
C
0,10% max
Silicon
Si
0,08% max
Magnese
Mn
0,5% max
Molybden
Mo
13% max
Copper
Cu
0,5% max
Iron
F
3% max
Chromium
Cr
22% max
Tungsten
W
3% max
Cobalt
Co
2,5% max
Heat Treatment
1120° C followed by water quenching
Alloy C-22 has outstanding resistance to pitting, crevice corrosion and stress-corrosion cracking. It has excellent resistance to oxidizing aqueous media including acids with oxidizing agents, wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Hastelloy C-22 has outstanding resistance to both reducing and oxidizing media, and because of its versatility can be used where “upset” conditions are likely to occur or in multipurpose plants.
exhibits excellent weldability
Marking
All material will be marked as follow:
- Manufacturer’s name
- Material grade
- Size
- Heat Number
Certification
Material will be delivered with certificate EN 10204 3.1
