35HGSL

gears, sprockets, axles, shafts, couplings and other critical parts, which are requirements of increased wear resistance.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % P, % C, % S, %
GOST 977-88 96.52–97.5 0.6–0.8 1–1.3 0.6–0.9 < 0.04 0.3–0.4 < 0.04

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 215 36 7800 0.311
100 211 11.8 37 0.496 0.343
200 203 12.3 38 0.504 0.419
300 196 12.8 38 0.512 0.504
400 184 13.3 37 0.533 0.579
500 174 13.8 35 0.554 0.663
600 164 14.1 33 0.584 0.824
700 143 14.4 32 0.622 0.981
800 125 12.6 30 0.693 1.133
900 13.3 29 0.689 1.187

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 < 100 589 343 14 25 294 Normalization of 870-890 ° C, 570-600 ° C and Holidays
Castings GOST 977-88 785 589 10 20 392 Tempering 870-880 ° C, 630-670 ° C and Holidays

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy 163–240
Alloy Hardening, average vacation 217–269

Casting and technological parameters

linear shrinkage, %
2.2–2.3

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Boundedly welded insensitive loathsome

Critical point temperatures

Ac1, K Ac3(Acm), K Ar3(Arcm), K Ar1, K
765 840 710 720

Heat Treatment Modes

Treatment
Normalization 870 - 890 ° C, Vacation 570 - 600 ° C
Tempering 870 - 880 ° C, Vacation 630 - 670 ° C

Analogues

Germany
G 37 MnSi 5

Standards

Standard Description
GOST 977-88

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$c\cdot 10^{-3}$$ $$\frac{J}{kg\cdot K}$$ The specific heat of the material (range 20°C–T)
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

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

Description of the casting and technological parameters

Parameter Units of measurement Description
linear shrinkage % The difference between model dimensions and the model casting

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Ar3(Arcm) K
Ar1 K