Hastelloy C- 22 alloy has corresponding similar grades in different countries and regions, as follows:
-USA: Hastelloy C- 22, UNS N06022
-China: NS333
Europe: 2.4602
-Japan: NW6022
Hastelloy C- 22
Hastelloy C- 22 Alloy Properties
Hastelloy C- 22 is a nickel-chromium-molybdenum-tungsten alloy with excellent resistance to oxidation and corrosion in reducing media. The alloy is widely used in extreme corrosive environments such as chemical, petroleum and pollution control.
Ingredients
|
element |
Content (%) |
|
Nickel (Ni) |
margin |
|
Chromium (Cr) |
20.0-22.5 |
|
Molybdenum (Mo) |
12.5-14.5 |
|
Iron (Fe) |
2.0-6.0 |
|
Tungsten (W) |
2.5-3.5 |
|
Cobalt (Co) |
≤ 2.5 |
|
carbon (C) |
≤ 0.015 |
|
Silicon (Si) |
≤ 0.08 |
|
Manganese (Mn) |
≤ 0.5 |
|
Phosphorus (P) |
≤ 0.02 |
|
Sulfur (S) |
≤ 0.02 |
physical properties
|
performance index |
value |
|
density |
8.69 g/cm³ |
|
melting point |
1350-1370°C |
|
Coefficient of thermal expansion (20-1000°C) |
11.0 x 10⁻⁶ /°C |
|
thermal conductivity |
9.5 W/(m·K) |
|
modulus of elasticity |
205 GPa |
heat treatment
|
Processing Steps |
Description |
|
solution treatment |
was heated at 1120°C and then rapidly cooled. |
machining and welding
·Cold working: suitable for cold drawing and cold rolling, which can increase strength.
·Hot processing: should be carried out between 950-1175°C.
·welding: suitable for TIG and MIG welding, after welding can be solid solution heat treatment.
Application
·chemical equipment: suitable for reaction kettle, pipeline and heat exchanger.
·oil industry: used in oil refining equipment and offshore platforms.
·pollution control: used for key components in flue gas desulfurization systems.
·pharmaceutical industry: suitable for the production process with strong corrosive environment.
Hastelloy C- 22 alloy is available in different shapes and sizes, including plates, bars, wires and forgings.
