Hastelloy C22 UNS N06022 2.4602 Corrosion-Resisting Superalloy Bars and Plates
This nickel-chromium-molybdenum-tungsten-based supercorrosion-resistant alloy exhibits outstanding performance in both oxidizing and reducing media. It is highly resistant to corrosion by a variety of strong acids, including boiling hydrochloric acid and sulfuric acid. The alloy boasts exceptional resistance to pitting corrosion and crevice corrosion, as well as excellent resistance to stress-corrosion cracking. Additionally, it demonstrates superior thermal stability and excellent weldability.
Applications of Hastelloy C22
This material is the preferred choice for manufacturing acid regeneration systems and key equipment in titanium dioxide production. It can also be used in seawater treatment plants and deep-sea equipment in marine engineering projects. Moreover, in emerging fields such as nuclear fuel reprocessing, acidic environments in oil and gas extraction, and waste-to-energy incineration, this material demonstrates outstanding performance that surpasses conventional materials.
Equivalent Grades and Commonly Used Specifications of Hastelloy C22
| Steel Grade | Specification | Specification Name |
| NS3308 | GB/T 15007 | Designations of corrosion-resisting alloy |
| YB/T 5355 | Cold-rolled strips of corrosion resisting alloy | |
| UNS N06022 / Inconel 622/
Hastelloy C-22 |
ASTM B575 | Standard Specification for Low-Carbon Ni-Cr-Mo, Low-Carbon Ni-Cr-Mo-Cu, Low-Carbon Ni-Cr-Mo-Ta, Low-Carbon Ni-Cr-Mo-W, and Low-Carbon Ni-Mo-Cr Alloy Plate, Sheet, and Strip |
| ASTM B564 | Standard Specification for Nickel Alloy Forgings | |
| ASTM B574 | Standard Specification for Low-Carbon Ni-Cr-Mo, Low-Carbon Ni-Mo-Cr, Low-Carbon Ni-Mo-Cr-Ta, Low-Carbon Ni-Cr-Mo-Cu, and Low-Carbon Ni-Cr-Mo-W Alloy Rod and Bar | |
| ASTM B622 | Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube | |
| ASTM B619 | Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe | |
| ASTM B366 | Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings | |
| 2.4602/
NiCr21Mo14W/ Nicrofer 5621 hMoW |
DIN 17750 | Wrought Nickel and Nickel Alloy Sheet, Plate and Strip |
| DIN 17752 | Rods and Bars of Wrought Nickel and Nickel Alloys-Properties | |
| DIN 17744 | Wrought Nickel Alloys with Molybdenum and Chromium-Chemical Composition |
Typical Chemical Composition of Hastelloy C22
|
Elements |
C | Si | Mn | P | S | Cr | Mo | Co | W | Fe |
V |
|
Mass Fraction% |
≤0.015 | ≤0.08 | ≤0.50 | ≤0.020 | ≤0.020 | 20.00~22.50 | 12.50~14.50 | ≤2.50 | 2.50~3.50 | 2.00~6.00 |
≤0.35 |
| Products produced as per other specifications or technical agreements (if need) are available. | |||||||||||
Typical Heat Treatment Condition and Mechanical Properties of Hastelloy C22
|
Delivery Condition |
Mechanical Properties and Hardness of Heat-Treated Specimens | ||||||
| Rp0.2/(N/mm2) | Rm/(N/mm2) | A/% | Zb/% | Aku2d/J | HRB |
HRC |
|
|
Solution-treated Condition |
≥310 | ≥690 | ≥45 | / | / | ≤100 |
/ |
| Products produced as per other specifications or technical agreements (if need) are available. | |||||||
Product Forms and Size Range of Hastelloy C22
|
Product forms |
Size range |
|
Bars |
Diameter or side length: 5.0mm~1000mm |
| Flats |
thickness: 4.0mm~1000mm width: 300mm~2200mm |
| Produce as other form and size according to technical requirements are available. | |
