EP642-VD

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Ni, %	Al, %	Ce, %	P, %	C, %	S, %	Mo, %	W, %
TU 14-1-1914-76	< 4	< 0.35	< 0.6	14–16	1.3–1.6	58.47–70.1	0.6–0.9	< 0.02	< 0.01	< 0.04	< 0.01	12–14	2–4

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Physical characteristics

Temperature, °C	$$\alpha\cdot 10^{6}$$, $$K^{-1}$$	$$\varkappa$$, $$\frac{W}{m\cdot K}$$	$$\rho$$, $$\frac{kg}{m^3}$$
20	11.7–12.2	12.7–13.9	8000

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{Y}$$, $$MPa$$	d5, %	Treatment
Tape	TU 14-1-1914-76	>1.0	Transverse	raw, cold rolling, thin	1250–1320	670–720	> 1

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Rolling	Standard	Classifiers	Value, HRC
Tape	TU 14-1-1914-76	raw, cold rolling, thin, Transverse	47–51

Technological Properties

Weldability	Flake Susceptibility	Propensity to temper brittleness
Difficult to weld	insensitive	inclined

Limit operating modes

Standard	Температура, °C
TU 14-1-1914-76	> 250

Properties

Property
The alloy is non-magnetic, corrosion resistant in chemically aggressive environments, dispersion hardening

Standards

Standard	Description
TU 14-1-1914-76

Description of chemical elements

Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Ti	%	Titan
Ni	%	Nickel
Al	%	Aluminium
Ce	%	Cerium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum
W	%	Tungsten

Description of physical characteristics

Parameter	Units of measurement	Description
$$\alpha\cdot 10^{6}$$	$$K^{-1}$$	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

Description of mechanical properties

Parameter	Units of measurement	Description
d5	%	Elongation at break
$$\sigma_{Y}$$	$$MPa$$	Yield strength
$$\sigma _{U}$$	$$MPa$$	Ultimate tensile strength

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