EP975-ID (EP975ID, ZhS6UD)

used for the manufacture of disks of gas turbine engines with a working temperature up to 850 ° 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, %	Co, %	Cr, %	Ti, %	Ni, %	Zr, %	Al, %	Ce, %	P, %	C, %	S, %	Nb, %	Mo, %	W, %
Standard	Fe, %	Si, %	B, %	Mn, %	Co, %	Cr, %	Ti, %	Ni, %	Zr, %	Al, %	Ce, %	P, %	C, %	S, %	Nb, %	Mo, %	W, %
TU 1-801-1839 - 99	< 1	< 0.4	< 0.035	< 0.4	14.1–17	7.5–9	2–2.7	49.61–60.5	< 0.04	4.5–5.1	< 0.03	< 0.015	0.1–0.16	< 0.01	1–2	0.8–1.5	9.5–11

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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
Alloy	TU 1-801-1839 - 99				1250	950	16	400	14

Standards

Standard	Description
Standard	Description
TU 1-801-1839 - 99

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
B	%	Bor
Mn	%	Manganese
Co	%	Cobalt
Cr	%	Chrome
Ti	%	Titan
Ni	%	Nickel
Zr	%	Zirconium
Al	%	Aluminium
Ce	%	Cerium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Nb	%	Niobium
Mo	%	Molybdenum
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