20HMFL

parts fittings, body parts, cylinders, running at temperatures up to 540 degrees.

Classification

Country Section Category
CIS, Russia, Ukraine Steels and alloys for castings Ordinary steel for castings

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % V, % P, % C, % S, % Mo, %
GOST 977-88 96.2–97.42 0.2–0.4 0.6–0.9 0.9–1.2 0.2–0.3 < 0.025 0.18–0.25 < 0.025 0.5–0.7

Information on suppliers

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
Castings GOST 977-88 491 275 16 35 294

Heat Treatment Modes

Treatment
Normalization 970 - 1000 and 960 - 980 ° C, Release 710 -740 ° C

Analogues

USA Germany
Gr.WC6 1.7733 (24CrMoV5-5)

Standards

Standard Description
GOST 977-88

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum

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