08G2DNFL

for large body parts; Tops frame casings, beds bearings, cast parts for heavy-duty excavators and other high strength welded parts.

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	РЗЭ, %	V, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	РЗЭ, %	V, %	P, %	C, %	S, %
GOST 21357-87	94.68–96.51	0.15–0.4	1.3–1.7	< 0.3	0.8–1.1	1.15–1.55	0.02–0.05	0.02–0.08	< 0.02	0.05–0.1	< 0.02

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Castings	GOST 21357-87				500	400	45	20	Normalization 930 - 970 ° C or Normalization 920 - 950 ° C, Release 590 - 630 ° C

Heat Treatment Modes

Treatment
Treatment
Normalization 930 - 970 ° C or Normalization 920 - 950 ° C, Release 590 - 630 ° C

Standards

Standard	Description
Standard	Description
GOST 21357-87

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
РЗЭ	%	Rare earth elements
V	%	Vanadium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of mechanical properties

Parameter	Units of measurement	Description
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