Designation
| Name |
The value |
| Designation GOST Cyrillic |
S-NiMn13-7 |
| Designation GOST Latin |
S-NiMn13-7 |
| Transliteration |
S-NiMn13-7 |
| By chemical elements |
S-NiMn13-7 |
Description
Cast iron S-NiMn13−7 is used: for the manufacture of castings covers, creating pressure in turbine installations; casings for switchgear; the flanges of the insulators, clamps and pipes.
Note
Nickel cast iron. Is not magnetic.
Standards
| Name |
Code |
Standards |
| Castings with special properties (iron and steel) |
В83 |
GOST 7769-82 |
Chemical composition
| Standard |
C |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| GOST 7769-82 |
≤3 |
≤0.08 |
6-7 |
≤0.2 |
2-3 |
12-14 |
Rest |
≤0.5 |
Fe is the basis.
Mechanical properties
| sT|s0,2, MPa |
σU, MPa |
d4 |
HB, MPa |
| Castings on OST 1 90077-72 |
| 210-260 |
390-460 |
15-25 |
130-170 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d4 |
Elongation after rupture |
| HB |
Brinell hardness number |
Physical characteristics
| Temperature |
Е, HPa |
| 20 |
140-150 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| a |
The coefficient of linear expansion |