Cast iron СЧ20ХН
Designation
| Name |
The value |
| Designation GOST Cyrillic |
СЧ20ХН |
| Designation GOST Latin |
CCh20XH |
| Transliteration |
SCh20HN |
| The chemical elements |
- |
Description
Cast iron СЧ20ХН used: for the manufacture of castings with the lowest allowable wall thickness of 15 mm corrosion resistant parts operating in slightly alkaline and gaseous media (tsarg and other parts of the columns of the soda production).
Note
Corrosion resistant grey cast iron with Ni and CR.
Standards
| Name |
Code |
Standards |
| Cast iron |
В11 |
STP М319-95 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
| STP М319-95 |
3.2-3.7 |
≤0.15 |
≤0.2 |
0.4-0.9 |
0.4-0.7 |
1.5-2.3 |
0.8-1.2 |
The rest |
Fe is the basis.
Mechanical characteristics
| σB, MPa |
Brinell hardness number, MPa |
| Castings on OST 1 90077-72 |
| ≥200 |
170-241 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
Technological properties
| Name |
The value |
| Microstructure |
Pearlitic perlito-ferritic. Graphite plate. |