15H18N22V6M2L

parts for engines of aircraft industry (workers and nozzle blades of gas turbines and others.); 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, % Cu, % Ni, % P, % C, % S, % Mo, % W, %
GOST 977-88 46.225–56.4 0.2–0.6 < 0.01 0.3–0.6 16–18 < 0.3 20–24 < 0.035 0.1–0.2 < 0.03 2–3 5–7

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Casting 500 200 5 Aging 800 ° C, 12-16 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
Cu % Copper
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum
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)