31H19N9MVBTL (EI572L, 30H19NMVBTL)

for heat-resistant parts: turbochargers turbine impellers, turbine blades and guide; heat resistant 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, % Mn, % Cr, % Ti, % Ni, % P, % C, % S, % Nb, % Mo, % W, %
GOST 977-88 63.295–70.54 < 0.8 0.8–1.5 18–20 0.2–0.5 8–10 < 0.035 0.26–0.35 < 0.02 0.2–0.5 1–1.5 1–1.5

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ Treatment
Castings GOST 977-88 540 294 12 294 Hardening of 1150-1180 ° C, cooling water, Aging 700-800 ° C

Heat Treatment Modes

Treatment
Hardening 1150 - 1180 ° C, cooling in water, Aging 700 - 800 ° C

Analogues

USA
S63199

Standards

Standard Description
GOST 977-88

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
Nb % Niobium
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)
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness