08H17N34V5T3YU2RL

nozzle and rotor blades of gas turbines Solid rotors and other parts operating at temperatures up to 800 degrees C; austenitic steel.

Classification

Country Section Category
CIS, Russia, Ukraine Steels and alloys for castings Steel for casting with special properties

Chemical composition

Standard Fe, % Si, % B, % Mn, % Cr, % Ti, % Ni, % Al, % Ce, % P, % C, % S, % W, %
GOST 977-88 34.95–43.7 0.2–0.5 < 0.05 0.3–0.6 15–18 2.6–3.2 32–35 1.7–2.1 < 0.01 < 0.01 < 0.08 < 0.01 4.5–5.5

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % Treatment
Castings GOST 977-88 785 687 3 3

Heat Treatment Modes

Treatment
Hardening 1140 - 1160 ° C, air cooling, Aging 740 - 760 ° C, 32 hours, air cooling

Standards

Standard Description
GOST 977-88

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
Ce % Cerium
P % Phosphorus
C % Carbon
S % Sulfur
W % Tungsten

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