α⋅106
K−1
ϰ
Wm⋅K
ρ
kgm3
c⋅10−3
Jkg⋅K
σU
MPa
σ0.2
MPa
ϵL

1.4837 (GX40CrNiSi25-12)

Classification

Country Section Category
Germany Stainless and Heat Resisting Steels Heat Resistant Steels with Ni > = 2.5%

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Mo, %
EN 10295 53.43–63.7 1–2.5 < 2 24–27 11–14 < 0.04 0.3–0.5 < 0.03 < 0.5

Information on suppliers

Physical characteristics

Temperature, °C \alpha\cdot 10^{6}α⋅106, K^{-1}K−1 \varkappaϰ, \frac{W}{m\cdot K}Wm⋅K \rhoρ, \frac{kg}{m^3}kgm3 c\cdot 10^{-3}c⋅10−3, \frac{J}{kg\cdot K}Jkg⋅K
20 14.6 7800 0.5
400 17.5
800 18.5
1000 19
1200 19.5

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \sigma_{0.2}σ0.2, MPaMPa \epsilon_LϵL, % Treatment
450 220 6

Analogues

CIS, Russia, Ukraine USA
30Х24Н12СЛ J94013

Standards

Standard Description
EN 10295
DIN 17465

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum

Description of physical characteristics

Parameter Units of measurement Description
\alpha\cdot 10^{6}α⋅106 K^{-1}K−1 Coefficient of thermal (linear) expansion (range 20°C–T)
\varkappaϰ \frac{W}{m\cdot K}Wm⋅K Coefficient of thermal conductivity (the heat capacity of the material)
\rhoρ \frac{kg}{m^3}kgm3 The density of the material
c\cdot 10^{-3}c⋅10−3 \frac{J}{kg\cdot K}Jkg⋅K The specific heat of the material (range 20°C–T)

Description of mechanical properties

Parameter Units of measurement Description
\sigma_{0.2}σ0.2 MPaMPa Tensile stress required to produce a total elongation of 0.2%
\sigma _{U}σU MPaMPa Ultimate tensile strength
\epsilon_LϵL % Elongation at break (longitudinal)