E⋅109
MPa
α⋅106
K−1
ϰ
Wm⋅K
ρ
kgm3
c⋅10−3
Jkg⋅K
R⋅10−6
Ω⋅m
σU
MPa

1.4109 (X70CrMo15)

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % P, % C, % S, % Mo, %
80.68–85 < 0.7 < 1 14–16 < 0.04 0.6–0.75 < 0.03 0.4–0.8

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}E⋅109, MPaMPa \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 R\cdot 10^{-6}R⋅10−6, \Omega\cdot mΩ⋅m
20 220 25 7700 0.46 0.7
100 10
200 10.5
300 10.5
400 10.5
500 11

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa Treatment
annealing, soft 900

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 280

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
E\cdot 10^{9}E⋅109 MPaMPa Elastic modulus
\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)
R\cdot 10^{-6}R⋅10−6 \Omega\cdot mΩ⋅m Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength