ХН38ВТ (ЭИ703)

ХН38ВТ (ЭИ703) is a Fe Ni Cr based solid solution strengthening phase deformed superalloy, which is solution strengthened with elements such as chromium and tungsten, and the service temperature is below 900 ℃.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
–	–	ХН38ВТ (ЭИ703)	–	–	–	–	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	W	Ti	Fe
ХН38ВТ	0.06-0.12	≤0.8	≤0.7	≤0.03	≤0.02	20.0-23.0	35.0-39.0	2.8-3.5	0.7-1.2	Bal

Typical Physical and Mechanical Properties (RT, Solution Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HRB
8.2	1320-1380	855	–	38	/

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 thermal strength, good hot working plasticity, welding and cold forming process.

Applications

The alloy has been used to make parts such as turbine engine combustion chamber, turbine outer ring and exhaust device that work for a long time below 900℃. It is suitable for making flame copper, combustion chamber jacket, afterburner, guide ring and other annular parts of various aviation and aerospace engines.