E109
MPa
α106
K1
ϰ
WmK











1.4305 (X8CrNiS18-9)

Classification

Country Section Category
Germany Stainless and Heat Resisting Steels Stainless Steel with Ni ≥ 2.5% without Mo, Nb and Ti

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, % N, %
66.395–74.85 < 1 < 2 17–19 < 1 8–10 < 0.045 < 0.1 0.15–0.35 < 0.11

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}E109, MPaMPa \alpha\cdot 10^{6}α106, K^{-1}K1 \varkappaϰ, \frac{W}{m\cdot K}WmK \rhoρ, \frac{kg}{m^3}kgm3 c\cdot 10^{-3}c103, \frac{J}{kg\cdot K}JkgK R\cdot 10^{-6}R106, \Omega\cdot mΩm
20 200 15 7900 0.5 0.73
100 16
200 16.5
300 17
400 17.5
500 18

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{0.2}, MPa \epsilon_L, % Treatment
annealing, soft 500–700 190 35

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 230

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
S % Sulfur
N % Nitrogen

Description of physical characteristics

Parameter Units of measurement Description
E\cdot 10^{9} MPa Elastic modulus
\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
c\cdot 10^{-3} \frac{J}{kg\cdot K} The specific heat of the material (range 20°C–T)
R\cdot 10^{-6} \Omega\cdot m Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
\sigma_{0.2} MPa Tensile stress required to produce a total elongation of 0.2%
\sigma _{U} MPa Ultimate tensile strength
\epsilon_L % Elongation at break (longitudinal)