S-NiSiCr20-5-2
Casting details of valves, pumps; castings used in industrial furnaces, which are subjected to high mechanical stress.
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Cast iron |
Nickel cast iron |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Cu, % |
Ni, % |
P, % |
C, % |
|---|
| GOST 7769-82 |
64.92–76 |
4.5–5.5 |
0.5–1.5 |
1–2.5 |
< 0.5 |
18–22 |
< 0.08 |
< 3 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
|---|
| 20 |
122 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{P}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Casting |
GOST 7769-82 |
|
|
|
370–430 |
210–260 |
14 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
|
GOST 7769-82 |
|
180–230 |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$E\cdot 10^{9}$$ |
$$MPa$$ |
Elastic modulus |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\sigma_{P}$$ |
$$MPa$$ |
Proportionality limit |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |