25H13N2 (2X14H2, EI474)

parts with high ductility, subject to impact loads (valves of hydraulic presses, household items), as well as products that are exposed to slightly aggressive environments; martensitic steel — ferritic class

Classification

Country Section Category
CIS, Russia, Ukraine Corrosion-resistant alloys and steels Corrosion-resistant ordinary steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % P, % C, % S, %
GOST 5632-72 81.1–85.27 < 0.5 0.8–1.2 12–14 < 0.2 < 0.3 1.5–2 0.08–0.15 0.2–0.3 0.15–0.25

Information on suppliers

Physical characteristics

Temperature, °C $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$
20 18 7680
100 11.6 19
200 12 20
300 12.4 22
400 12.8 24

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ Treatment
Bar of specified strength GOST 18907-73 690–980

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy annealing 207–285

Standards

Standard Description
GOST 5632-72

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur

Description of physical characteristics

Parameter Units of measurement Description
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength