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

Standard Description
GOST 7769-82

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)