Steel 13KH11N2V2MF (ЭИ961; VNS-33)

Designation

Name	The value
Name	The value
Designation GOST Cyrillic	13Х11Н2В2МФ
Designation GOST Latin	13X11H2B2MF
Transliteration	13H11N2V2MF
By chemical elements	13Cr11Н2W2MoV

Name	The value
Name	The value
Designation GOST Cyrillic	ЭИ961
Designation GOST Latin	EI961
Transliteration	EhI961
By chemical elements	-

Name	The value
Name	The value
Designation GOST Cyrillic	ВНС-33
Designation GOST Latin	BHC-33
Transliteration	VNS-33
By chemical elements	WНС-33

Description

13KH11N2V2MF steel is used: for the manufacture of critical loaded parts operating at temperatures up to +600 °C; the disks of the compressor blades and other loaded items; bars and strips steel hot-rolled and forged, used for the manufacture of parts of structures in the aircraft industry; solid-rolled rings from various industrial purposes; shaped castings for the aircraft industry; nitride of parts for the aircraft industry.

Note

Steel corrosion and heat resistant martensitic class.
The recommended maximum operating temperature for a long time (10,000 hours) +600 °C.
Temperature intense scaling in air +750 °C.

Standards

Name	Code	Standards
Name	Code	Standards
Sheets and strips	В23	GOST 103-2006
Bars and shapes	В22	GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips	В33	GOST 4405-75
Classification, nomenclature and General rules	В30	GOST 5632-72
Bars and shapes	В32	GOST 5949-75, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, OST 1 90227-76, TU 14-1-1239-75, TU 14-1-1791-76, TU 14-1-2835-79, TU 14-1-2972-80, TU 14-1-3297-82, TU 14-1-4940-90, TU 14-11-245-88, TU 14-1-1271-75
Classification, nomenclature and General rules	В20	OST 1 90005-91
Castings with special properties (iron and steel)	В83	OST 1 90090-79, TU 4112-78269737-003-2007, TU 1-812-0061-83
Blanks. Of the workpiece. Slabs	В21	OST 1 90176-75
Blanks. Of the workpiece. Slabs	В31	OST 108.020.03-82, OST 3-1686-90, OST 1 90164-74, OST 1 90351-84, TU 14-1-1169-74, TU 14-1-4492-88, TU 24-1-1706-78, TU 14-1-2433-78
Processing of metals by pressure. Forgings	В03	TU 14-1-1530-75, TU 14-1-2902-80, TU 14-1-2918-80

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	Al	V	Ti	Mo	W
Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	Al	V	Ti	Mo	W
OST 1 90090-79	0.12-0.16	≤0.025	≤0.025	0.3-0.8	10.5-12	0.2-0.65	1.4-1.8	Rest	≤0.3	≤0.05	≤0.1	0.18-0.3	≤0.05	0.35-0.5	1.5-2
TU 14-1-2918-80	0.1-0.16	≤0.015	≤0.03	≤0.6	10.5-12	≤0.6	1.5-1.8	Rest	≤0.3	-	-	0.18-0.3	≤0.2	0.35-0.5	1.6-2
TU 14-1-2835-79	0.1-0.16	≤0.015	≤0.03	≤0.6	10.5-12	≤0.6	1.5-1.8	Rest	≤0.25	-	-	0.18-0.3	-	0.35-0.5	1.6-2
TU 14-1-3297-82	0.1-0.16	≤0.025	≤0.03	≤0.6	10.5-12	≤0.6	1.5-1.8	Rest	≤0.25	-	-	0.18-0.3	≤0.2	0.35-0.5	1.6-2
GOST 5632-72	0.1-0.16	≤0.025	≤0.03	≤0.6	10.5-12	≤0.6	1.5-1.8	Rest	≤0.3	-	-	0.18-0.3	≤0.2	0.35-0.5	1.6-2

Fe is the basis.
According to TU 14-1-2902-80 the chemical composition is given for steel grade 13Х11Н2В2МФ-Ш (EI961-Ш).
According to TU 14-1-3297-82, the chemical composition is given for 1 steel grade 3Х11Н2В2МФ-Ш (ЭИ961-Ш). At the request of the consumer, steel grade 13Х11Н2В2МФ-Ш "select" with the content of elements С = 0,12-0,15%, Ni = 1,70-2,00%, V = 0,16-0,26% can be made.
According to OST 1 90090-79 the chemical composition is given for steel grade 13H11N2V2MFL (EI961L).
According to TU 14-1-2918-80 the chemical composition is given for steel grade 13Х11Н2В2МФ-Ш (EI961-Ш).
According to TU 14-1-1791-76 the chemical composition is given for steel grade 13Х11Н2В2МФ-Ш (ЭИ961-Ш). Deviations in chemical composition are allowed provided that all the requirements of TU are met: carbon ± 0.010%, molybdenum and vanadium ± 0.020% each, tungsten ± 0.050%.
According to TU 14-1-2835-79, the chemical composition is given for steel grade 13Х11Н2В2МФ-Ш (ЭИ961-Ш). In the finished rolled products subject to the requirements of the technical specification, deviations from the chemical composition standards are allowed: carbon ± 0.010%, molybdenum and vanadium ± 0.020% each, tungsten ± 0.050%.

Mechanical properties

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d	y, %	KCU, kJ/m²	HB, MPa	HRC
Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d	y, %	KCU, kJ/m²	HB, MPa	HRC
A sample with a diameter of 6 mm and a length of 30 mm, laminated. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
-	900	≥105	≥135	≥64	-	≥87	-	-	-
-	1000	≥39	≥71	≥58	-	≥81	-	-	-
-	1100	≥28	≥41	≥61	-	≥95	-	-	-
-	1200	≥22	≥27	≥55	-	≥87	-	-	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	200	≥1330	≥1520	≥12	-	≥55	-	≥432	-
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
-	-	-	880-1080	-	-	-	-	262-321	23-33
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	650	≥750	≥900	≥16	-	≥63	-	≥268	-
Ring welded at OST 1 90351-84. Quenching in oil from 1000-1020 °C + Vacation at 540-590 °C, air cooling
-	-	≥930	≥1080	≥13	-	≥55	≥882	310-388	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	600	≥910	≥1090	≥15	-	≥61	-	-	-
Ring welded at OST 1 90351-84. Quenching in oil from 1000-1020 °C + Vacation at 540-590 °C, air cooling
-	-	≥784	≥912	-	-	≥27	≥441	-	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	550	≥1090	≥1240	≥15	-	≥61	-	≥337	-
Ring welded at OST 1 90351-84. Quenching in oil from 1000-1020 °C to + Leave in 660-710 °C, air cooling
-	-	≥735	≥880	≥15	-	≥55	≥882	269-321	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	500	≥1190	≥1330	≥13	-	≥60	-	≥390	-
Forming at OST 1 90176-75. Quenching in oil from 1000-1020 °C + Vacation
-	660-710	-	-	≥10	-	≥45	≥588	-	-
Ring welded at OST 1 90351-84. Quenching in oil from 1000-1020 °C to + Leave in 660-710 °C, air cooling
-	-	≥676	≥794	≥8	-	≥32	≥441	-	-
Ring clinocerinae for OST 1 90227-76. Quenching in oil or air from 1000-1020 °C + Vacation
	660-710	≥735	≥883	≥12	-	≥44	≥656	269-320	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	475	≥1430	≥1530	≥13	-	≥54	-	≥440	-
Forming at OST 1 90176-75. Quenching in oil from 1000-1020 °C + Vacation
-	540-590	-	-	≥10	-	≥50	≥490	-	-
Ring clinocerinae for OST 1 90227-76. Quenching in oil or air from 1000-1020 °C + Vacation
	540-590	≥932	≥1080	≥12	-	≥55	≥784	310-387	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	450	≥1380	≥1500	≥15	-	≥56	-	≥420	-
-	400	≥1340	≥1490	≥13	-	≥54	-	≥432	-
The casting and the ceramic mold. Quenching in oil from 1000-1020 °C + Vacation at 560-590 °C (1-2 hours), air cooling
-	-	≥834	≥1080	-	≥10	≥30	≥343	294-363	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	300	≥1330	≥1470	≥13	-	≥59	-	≥420	-
The casting and the ceramic mold. Quenching in oil with 990-1030 °C + Vacation at 660-690 °C (1-2 hours), air cooling
-	-	≥736	≥883	-	≥11	≥35	≥294	248-294	-
Forgings, rods and strips, rolled and forged. Quenching in oil from 1000-1020 °C + Vacation at 540-590 °C, air cooling
	-	-	-	≥10	-	≥50	≥490	-	-
Rolled steel. Quenching in oil from 1000 °C + Vacation
-	700	≥720	≥880	≥17	-	≥64	-	≥250	-
Forgings, rods and strips, rolled and forged. Quenching in oil from 1000-1020 °C + Vacation at 540-590 °C, air cooling
	-	≥930	≥1080	≥13	-	≥55	≥880	311-388	-
Forgings, rods and strips, rolled and forged. Quenching in oil from 1000-1020 °C to + Leave in 660-710 °C, air cooling
	-	-	-	≥10	-	≥45	≥590	-	-
	-	≥735	≥880	≥15	-	≥55	≥880	269-321	-
Rental and calibrated with special surface finish on the other 14-1-1791-76. Quenching in oil from 1000-1020 °C to + Leave in 660-710 °C
	-	≥754	≥882	≥15	-	≥55	≥882	269-320	-
Rolled round with special surface finish as supplied on the other 14-1-2835-79. Hardening in air, 720-730 °C. In the graph δ is the parameter δ100
	-	≥785	≥980	-	≥8	≥60	-	-	-
Rolled round with special surface finish on the other 14-1-2835-79. Quenching in oil with 1010-1030 °C + Vacation at 660-710 °C (exposure 1-2 h), air cooling. In the graph δ is the parameter δ100
	-	≥735	≥880	-	≥6	≥50	-	-	-
Forming at OST 1 90176-75. Quenching in oil from 1000-1020 °C + Vacation
	660-710	≥736	≥883	≥15	-	≥55	≥882	269-321	-
	540-590	≥932	≥1079	≥13	-	≥55	≥882	311-388	-

Description mechanical marks

Name	Description
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
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number
HRC	Rockwell hardness (indenter diamond spheroconical)

Technological properties

Name	The value
Name	The value
The temperature of forging	Start - 1250 °C, the end - 850 °C. the cross Sections up to 400 mm are subjected to low temperature annealing with two hypothermia.
Flock-sensitive sensitivity	Sensitive.
Particularities of production of goods	Round bars with special surface finish on the other 14-1-2835-79 supplied in heat treated condition for the regime: hardening in air, 720-730 °C.