20GSL

body parts of water turbines, operating at temperatures up to 450 degrees.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
GOST 977-88 97.62–98.24 0.6–0.8 1–1.3 < 0.03 0.16–0.22 < 0.03

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
Heat treatment castings., К30 GOST 977-88 540 294 18 30 294 Normalized and tempered

Heat Treatment Modes

Treatment
Normalization 870 - 890 ° C, Vacation 570 - 600 ° C

Analogues

Germany European Union USA
1.1133 1.1133 1022
1.1120 (GS-20Mn5) 20Mn5 1518
1.1133 (20Mn5) G10220
1.1138 (G21Mn5) G15180
G15220
H15220

Standards

Standard Description
GOST 977-88

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
P % Phosphorus
C % Carbon
S % Sulfur

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