HN35VTYU (EI787)

Disks, turbine blades and compressors.

turbine rotor blades and other engine operating at temperatures up to 700−800 ° C, compressor blades running to 700−800 ° C, drives the deflectors, rings that operate at temperatures up to 750 ° C.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Heat resistant steels and alloys	Heat resistant alloys

Chemical composition

Standard	Fe, %	Si, %	B, %	Mn, %	Cr, %	Ti, %	Ni, %	Al, %	P, %	C, %	S, %	W, %
Standard	Fe, %	Si, %	B, %	Mn, %	Cr, %	Ti, %	Ni, %	Al, %	P, %	C, %	S, %	W, %
GOST 5632-72	37.545–47.4	< 0.6	< 0.02	< 0.6	14–16	2.4–3.2	33–37	0.7–1.4	< 0.035	< 0.08	< 0.02	2.5–3.5

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	215			8040	0.992
100	210	12.7	15.4
200	202	14.1	17.5
300	199	15	19.2
400	192	15.4	20.9
500	185	15.8	22.6
600	173	16	24.7
700	166	16.6	25.9
800	151	16.8	27.6
900		18.4	29.3

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
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
Rod					1050	700	7	10	250

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy			302–354

Technological Properties

Weldability
Weldability
Difficult to weld

Analogues

Germany
Germany
BGH 2.4952

Standards

Standard	Description
Standard	Description
GOST 5632-72
TU 14-1-1589-76
TU 14-1-850-74

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
Ni	%	Nickel
Al	%	Aluminium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
W	%	Tungsten

Description of physical characteristics

Parameter	Units of measurement	Description
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
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
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

Designation of types of weldability

Parameter	Units of measurement	Description
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