1.4509 (X2CrTiNb18)

Classification

Country Section Category
Germany Stainless and Heat Resisting Steels Stainless Steels with Special Additions

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % P, % C, % S, % Nb, %
77.815–82.1 < 1 < 1 17.5–18.5 0.1–0.6 < 0.04 < 0.03 < 0.015 0.3–1

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}, MPa \alpha\cdot 10^{6}, K^{-1} \varkappa, \frac{W}{m\cdot K} \rho, \frac{kg}{m^3} c\cdot 10^{-3}, \frac{J}{kg\cdot K} R\cdot 10^{-6}, \Omega\cdot m
20 220 25 7700 0.46 0.6
100 10
200 10
300 10.5
400 10.5

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{0.2}, MPa \epsilon_L, % Treatment
annealing, soft 430–630 200–250 18

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 200

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
P % Phosphorus
C % Carbon
S % Sulfur
Nb % Niobium

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)