Alloy ХН51КВМТЮБ used: for the manufacture of granules by hot isostatic pressing critical products (blank discs ДП242У, ДП243У, ДП244У, ДП286У, ДП287У, ДП288У and shaft ДП199У); elastic metal seals of detachable connections of liquid rocket engines.

Note

The granulated heat-resistant Nickel alloy.

Standards

Name	Code	Standards
Non-ferrous metals, including rare, and their alloys	В51	GOST Р 52802-2007, TU 1-809-443-81, TU 1-809-30-88
Blanks. Of the workpiece. Slabs	В31	TU 92-1-185-87, TU оп 1-809-265-87

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Al	B	Ti	Mo	Nb	W	Ce	Zr	Co	Mg	Hf
GOST Р 52802-2007	0.02-0.06	≤0.009	≤0.015	≤0.5	8-10	≤0.5	Rest	≤0.5	4.8-5.3	0.015	1.6-2	3.5-4.2	2.4-2.8	5.2-5.9	0.01	0.015	15-16.5	0.02	0.1-0.4

Ni is the basis.
According to GOST R 52802-2007 elements of boron, zirconium, cerium and magnesium are introduced by calculation and chemical analysis is not determined. When cerium is introduced in the form of misch metal, the calculation is made for the sum of rare-earth metals. Deviations of the chemical composition according to the content are allowed: iron - plus 0.50%, aluminum - plus 0.10%, boron - plus 0.005% (in the study of the chemical composition of boron). The content of residual elements in the finished alloy is in accordance with GOST 5632.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d	y, %	KCU, kJ/m²	HB, MPa
Blank disks and shafts on the other op 1-809-265-87 in the delivery condition. Hardening the compressed air 1200-1220 °C (endurance 4 hours) + First aging at 900-920 °C (extract 3 hours), cooling with the furnace to 750 °C, + Second-aged at 740-760 °C (exposure 8 h), air cooling. Allowed additional ageing at 750 °C (16 h exposure)
	≥951	≥1371	≥15	≥15	≥392	302-388

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number

Technological properties

Name	The value
Weldability	Is not welded.
Machinability	Difficult.

Alloy ХН51КВМТЮБ (JEP741NP)

Designation

Description