ХН45МВТЮБР (ЭП718)

ХН45МВТЮБР (ЭП718) is a Fe Ni Cr Based precipitation hardening deformed superalloy with a serviceability of less than 750℃. Chromium, tungsten and molybdenum are added to the alloy for solid solution strengthening, titanium, aluminum and niobium are added to form aging strengthening phase, and trace boron, zirconium and other elements are added to purify and strengthen grain boundaries.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
–	–	ХН45МВТЮБР (ЭП718)	–	–	–	–	–	–	–	–

Chemical Composition, %

Alloy

ХН45МВТЮБР

≤0.1

≤0.3

≤0.6

≤0.015

≤0.01

14.0-16.0

43.0-47.0

2.5-3.5

4.0-5.2

0.8-1.5

0.9-1.4

1.9-2.4

Bal

Typical Physical and Mechanical Properties (RT, Solution Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HRB
8.26	1320-1365	1050	–	33	/

Available Products and Specifications

Rod, Bar, Wire and Forgings	GOST 5632
Plate, Sheet and Strip	–
Pipe and Tube	–
Welding Product	–
Others	–

Features

The alloy has high strength, good plasticity, low expansion coefficient and long-term use of microstructure temperature; The alloy has good hot working plasticity and satisfactory welding, cold forming and cutting properties.

Applications

The alloy is suitable for making plate welded load-bearing structural parts of jet engines working below 700℃, as well as gas turbine rotors and compressor blades working below 600 ℃ for a long time.