13.10/2023
POLEMA presented at the“BIOTECHMED” its innovative medical products
11.07/2023
POLEMA at INNOPROM in Ekaterinburg
High entropy alloys
High entropy alloys
High entropy alloys are the materials that have been recently mastered by POLEMA.
These materials own unique corrosion resistance and they are capable of maintaining strength and flexibility even at ultra-low temperatures, and a stable phase composition during thermomechanical processing.
Suitable for the production or improvement of product properties by such methods as weld deposition or 3D printing.
Nominal chemical composition, % |
|||||
Grade |
Co |
Cr |
Ni |
Fe |
Admixtures |
AP-CoCr23Ni26 |
25,00-28,00 |
22,00-24,00 |
25,00-27,00 |
Bal. |
- |
AP-CrNi24Co24Al |
23,00-26,00 |
20,00-24,00 |
21,00-25,00 |
Bal. |
Al, Mn |
AP-CrNi23Co23Al |
20,00-24,00 |
20,00-24,00 |
20,00-24,00 |
Bal. |
Al, Mn |
AP-CrNi18Co18Cu20Al |
16,00-20,00 |
16,00-20,00 |
15,00-19,00 |
Bal. |
Cu, Al, Mn |
AP-CrNi21Co21Mn20 |
19,00-22,00 |
17,00-21,00 |
19,00-22,00 |
Bal. |
Mn 17,00-22,00 |
AP-CrNi20Co20Cu21 |
18,00-22,00 |
16,00-20,00 |
19,00-22,00 |
Bal. |
Cu, Mn |
* The manufacturer controls the content of S, P, Si, C. The results are not accepted as a rejection sign.
Additionally, the content of O and N is controlled for reference within the internal control of JSC POLEMA. The results are not accepted as a rejection sign.

Photo of AP-CoCr23Ni26 particles, grain size 20-56 mkm.