40GTL

for producing castings for various industrial applications

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Ti, %	P, %	C, %	S, %
GOST 977-88	97.29–98.24	0.2–0.5	1.2–1.6	0.02–0.1	< 0.045	0.34–0.42	< 0.045

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{Y}$$, $$MPa$$	$$\psi$$, %	$$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$	d5, %	Treatment
Castings	GOST 977-88				608	323	25	285	14	Normalization 870 - 920 ° C, Vacation 620 - 660 ° C
Castings	GOST 977-88				726	422	20	334	10	Tempering 680 - 880 ° C, Vacation 620 - 660 ° C

Heat Treatment Modes

Treatment
Normalization 870 - 920 ° C, Vacation 620 - 660 ° C
Tempering 680 - 880 ° C, Vacation 620 - 660 ° C

Standards

Standard	Description
GOST 977-88

Description of chemical elements

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

Description of mechanical properties

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