1.4935 (X20CrMoWV12-1)

Classification

Country Section Category
Germany Stainless and Heat Resisting Steels Materials with Elevated Temperature Properties

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % V, % P, % C, % S, % Mo, % W, %
82.97–86.73 0.1–0.5 0.3–0.8 11–12.5 0.3–0.8 0.2–0.35 < 0.025 0.17–0.24 < 0.015 0.8–1.2 0.4–0.6

Information on suppliers

Physical characteristics

Temperature, °C α106, K1 ϰ, WmK ρ, kgm3 c103, JkgK R106, Ωm
20 24 7700 0.46 0.6
100 9.5 25
200 10 25
300 10.5 26
400 11 26
500 11.5 26
600 12 27

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers σU, MPa σ0.2, MPa ϵL, % Treatment
moderate hardening 700–850 500 15–16 Heat treatment at 700 ° C
moderate hardening 800–950 600 14 Heat treatment at 800 ° C

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
α106 K1 Coefficient of thermal (linear) expansion (range 20°C–T)
ϰ WmK Coefficient of thermal conductivity (the heat capacity of the material)
ρ kgm3 The density of the material
c103 JkgK The specific heat of the material (range 20°C–T)
R106 Ωm Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
σ0.2 MPa Tensile stress required to produce a total elongation of 0.2%
σU MPa Ultimate tensile strength
ϵL % Elongation at break (longitudinal)