10H11N20T3R (EI696A)

Details of turbines.

turbine discs, circular parts, fasteners, compressor parts and the working part of the turbine with an operating temperature up to 700 deg .; austenitic steel

Classification

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

Chemical composition

Standard Fe, % Si, % B, % Mn, % Cr, % Ti, % Ni, % Al, % P, % C, % S, %
GOST 5632-72 60.325–69.4 < 1 < 0.02 < 1 10–12.5 2.6–3.2 18–21 < 0.8 < 0.035 < 0.1 < 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}
20 160 15.2 7900
100 15.9 16.3
200 17.4 17.5
300 18.8 18.8
400 140 19.9 20.5
500 135 20.3 22.6
600 132 21.1 23.8
700 115 21.8 25.1
800 113 21.6 26.8
900 90 21.3 28.5

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{P}, MPa \epsilon_L, % \psi, % KCU\cdot 10^{3}, \frac{J}{m^2} Treatment
Sheet cold rolled. 600 40 Hardening 1100 ° C, air
Rod GOST 5949-75 880 590 10 15 290 Quenching and aging

Standards

Standard Description
GOST 5632-72
TU 14-1-1671-76

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Mn % Manganese
Cr % Chrome
Ti % Titan
Ni % Nickel
Al % Aluminium
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
KCU\cdot 10^{3} \frac{J}{m^2} Impact toughness