13H14N3V2FRL (513L, EI736L)

Production of shaped castings for the aviation industry.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Steels and alloys for castings	Steel for casting with special properties

Chemical composition

Standard	Fe, %	Si, %	B, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	V, %	Al, %	P, %	C, %	S, %	Mo, %	N, %	W, %
Standard	Fe, %	Si, %	B, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	V, %	Al, %	P, %	C, %	S, %	Mo, %	N, %	W, %
OST 1-90090 - 79	78.514–83.927	0.2–0.8	0.003–0.006	0.2–0.8	11.5–13.5	< 0.05	< 0.3	2.3–3	0.18–0.28	< 0.1	< 0.025	0.09–0.15	< 0.025	< 0.2	< 0.05	1.6–2.2

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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
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	d5, %	Treatment
Castings	OST 1-90090 - 79				1200	1000	26	200	8
Castings	OST 1-90090 - 79				900	750	30	250	9	Hardening 1040oC, oil, Vacation 680oC, 2h, Air cooling

Standards

Standard	Description
Standard	Description
OST 1-90090 - 79

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
B	%	Bor
Mn	%	Manganese
Cr	%	Chrome
Ti	%	Titan
Cu	%	Copper
Ni	%	Nickel
V	%	Vanadium
Al	%	Aluminium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum
N	%	Nitrogen
W	%	Tungsten

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
$KCU\cdot 10^{3}$	$\frac{J}{m^2}$	Impact toughness