15H18N12S4L

Production of shaped castings for the aviation industry.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % V, % Al, % P, % C, % S, % Mo, % N, % W, %
OST 1-90090 - 79 61.31–68.57 3.8–4.5 0.5–1 17–19 < 0.05 < 0.3 10–13 < 0.05 < 0.1 < 0.025 0.13–0.19 < 0.025 < 0.2 < 0.05 < 0.2

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ d5, % Treatment
Castings OST 1-90090 - 79 680 320 400 20 Quenching 1100oC, water

Standards

Standard Description
OST 1-90090 - 79

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
V % Vanadium
Al % Aluminium
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum
N % Nitrogen
W % Tungsten

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness