1.3805 (X35Mn18)

Classification

Country Section Category
Germany Alloy Miscellaneous Steels Materials with Special Physical Properties without Ni

Chemical composition

Standard Fe, % Si, % Mn, % Ni, % P, % C, % S, % N, %
SEW390 78.41–82.7 < 1 17–19 < 1 < 0.06 0.3–0.4 < 0.03 < 0.1

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 190 7800 0.7
100 16.5
200 18.3
300 19.4
400 20.3

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.2}$$, $$MPa$$ $$\epsilon_L$$, % $$KU$$, $$J$$ Treatment
650–900 < 240 < 22 > 55 hardening

Standards

Standard Description
SEW390

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
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)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ 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)
$$KU$$ $$J$$ Impact energy