Cast Iron L-NiCr20-2
Designation
| Name |
The value |
| Designation GOST Cyrillic |
L-NiCr20-2 |
| Designation GOST Latin |
L-NiCr20-2 |
| Transliteration |
L-NiCr20-2 |
| The chemical elements |
L-NiCr20-2 |
Description
Cast iron L-NiCr20−2 is used: for the manufacture of castings pumps, pumping alkali; 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, but with higher corrosion resistance in alkaline environments. Cast iron has a high coefficient of thermal 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 |
1-2.5 |
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 |
| 170-210 |
2-3 |
120-215 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d4 |
Elongation after rupture |
Physical characteristics
| Temperature |
Е, ГПа |
| 20 |
85-105 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| a |
The coefficient of linear expansion |
