Alloy ХН56МБЮД used: for the manufacture of parts of instruments and equipment operating in cryogenic environments; blades of nozzle units and gas turbines.

Standards

Name	Code	Standards
Processing of metals by pressure. Forgings	В03	TU 14-1-4025-85
Sheets and strips	В33	TU 14-1-4381-87
Bars and shapes	В32	TU 14-1-5045-91, TU 14-1-3763-84

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	Al	V	Ti	Mo	Nb	Ce	Zr	La
TU 14-1-5045-91	≤0.05	≤0.015	≤0.015	≤0.7	14.5-18.5	≤0.5	Rest	12-16	0.1-1	1.2-2	0.3-0.6	0.1-0.7	4.5-6	3.5-4.5	0.02	≤0.3	0.01
TU 14-1-4025-85	≤0.05	≤0.02	≤0.02	≤0.7	14.5-18.5	≤0.5	Rest	12-16	0.1-1	1.2-2	0.3-0.6	0.1-0.7	4.5-6	3.5-4.5	0.02	≤0.2	0.01

Ni is the basis.
According to TU 14-1-5045-91 the chemical composition is given for the alloy grade KhN56MBYUD-ID (EC62-ID) and XH56MBY-VD (EC62-VD). In the alloy, no more than 0.020% of cerium is calculated and lanthanum is not more than 0.010%. The calculated content of cerium, lanthanum and zirconium is not determined by chemical analysis. In the finished metal, deviations from the mass fraction of elements along carbon by +0.010% and vanadium by ± 0.10% are allowed.
According to TU 14-1-4025-85, TU 14-1-3763-84, the chemical composition is given for an alloy of the brand KhN56MBYUD-ID (EC62-ID) and KhN56MBU-VD (EC62-VD).

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²
The bars as supplied on the other 14-1-3763-84 (in cross-section show the direction of cutting out of samples)
20-25	≥800	≥1250	≥20	≥40	≥490
20-25	≥800	≥1250	≥20	≥40	≥590
20-25	≥600	≥800	≥12	≥14	-
The bars as supplied on the other 14-1-5045-91. Annealing in air from 980-1000 °C (exposure for 1 hour) + Aging 715-745 °C (aging 15 hours), cooled with the furnace to 640-660 °C (excerpt 10 hours), air cooling
20-25	≥785	≥1180	≥18	≥30	-
20-25	≥588	≥760	≥8	≥16	-

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
d₅	Elongation after rupture
y	The relative narrowing
KCU	Toughness

Technological properties

Name	The value
Macrostructure and pollution	The macrostructure of the alloy should not have shrinkage and looseness, bubbles, cracks, inclusions, delaminations, visible without using the magnifying devices.

Alloy ХН56МБЮД (ЭК62)

Designation

Description

Standards

Chemical composition

Mechanical properties

Description mechanical marks

Technological properties

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