Cast Iron L-NiCr20-3
Designation
| Name |
The value |
| Designation GOST Cyrillic |
L-NiCr20-3 |
| Designation GOST Latin |
L-NiCr20-3 |
| Transliteration |
L-NiCr20-3 |
| The chemical elements |
L-NiCr20-3 |
Description
Cast iron L-NiCr20−3 is used: for the manufacture of working in high temperatures: casting pump parts, pump lye; for vessels, which contain caustic alkali; parts soap and food industries, industries for the production of artificial silk and plastics; suitable in cases where the required materials not containing copper.
Note
Nickel cast iron. Has properties similar to Marche L-NiCuCr15−6-2 and L-NiCr20−2, but with a higher resistance to erosion, high heat resistance and a high degree of expansion.
Standards
| Name |
Code |
Standards |
| Castings with special properties (cast iron and steel) |
В83 |
GOST 7769-82 |
Chemical composition
| Standard |
C |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| GOST 7769-82 |
≤3 |
0.5-1.5 |
2.5-3.5 |
1-2.8 |
18-22 |
The rest |
≤0.5 |
Fe is the basis.
Mechanical characteristics
| σB, MPa |
d4 |
Brinell hardness number, MPa |
| Castings on OST 1 90077-72 |
| 190-240 |
1-2 |
160-250 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d4 |
Elongation after rupture |
Physical characteristics
| Temperature |
Е, ГПа |
| 20 |
98-113 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| a |
The coefficient of linear expansion |
