1.7273 (24CrMo10)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr-Mo with Mo < 0.35%, Cr-Mo-B

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Mo, %
94.8–96.65 0.15–0.35 0.5–0.8 2.3–2.6 < 0.8 < 0.035 0.2–0.28 < 0.035 0.2–0.3

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}, MPa \alpha\cdot 10^{6}, K^{-1}
100 11.1
200 206 12.1
300 181 12.9
400 172 13.5
500 162 13.9
600 152 14.1

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{Y}, MPa \epsilon_L, % KU, J Treatment
640–780 > 440 < 17 > 48 After quenching and tempering or tempering

Description of chemical elements

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

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)

Description of mechanical properties

Parameter Units of measurement Description
\sigma_{Y} MPa Yield strength
\sigma _{U} MPa Ultimate tensile strength
\epsilon_L % Elongation at break (longitudinal)
KU J Impact energy