10H18N18YU4D (EP841)

rollers slot furnaces, covers thermocouples, heat exchangers and others. parts, long operating at temperatures up to 1100 degrees.

Classification

Country Section Category
CIS, Russia, Ukraine Heat resistant steels and alloys Heat resistant high alloy steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % Al, % Ce, % P, % C, % S, %
GOST 5632-72 54.385–60.33 < 0.8 < 0.8 18–19.5 0.4–0.6 18–19.5 3.2–4.2 < 0.03 < 0.035 0.07–0.13 < 0.02

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}
20 186 7630
100 182 15.5 12.4
200 178 16.5 13.4
300 171 17 15.4
400 165 17.4 17.1
500 161 17.65 18.4
600 156 18.2 20.5
700 146 18.4 21.7
800 138 18.8 23
900 127 18.6

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{P}, MPa \epsilon_L, % \psi, % Treatment
Sheet 4–11 Transverse 500 40 Heat 1080 ° C, air cooling
Rod 40 Longitudinal 600 340 28 35 Heating of 1130-1150 ° C, air cooling

Standards

Standard Description
GOST 5632-72

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
Al % Aluminium
Ce % Cerium
P % Phosphorus
C % Carbon
S % Sulfur

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

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U} MPa Ultimate tensile strength
\sigma_{P} MPa Proportionality limit
\epsilon_L % Elongation at break (longitudinal)
\psi % Reduction in cross section on fracture