Name	Code	Standards
Sheets and strips	В23	GOST 103-2006
Bars and shapes	В22	GOST 1133-71, GOST 8319.0-75, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Bars and shapes	В32	GOST 4543-71, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008
Processing of metals by pressure. Forgings	В03	GOST 8479-70, OST 5Р.9125-84, TU 0893-019-05764417-2001, ST ЦКБА 010-2004
Blanks. Of the workpiece. Slabs	В31	OST 3-1686-90, TU 14-1-4944-90

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	V	Ti	Mo	W
GOST 4543-71	0.33-0.4	≤0.025	≤0.025	0.25-0.5	1.3-1.7	0.17-0.37	1.3-1.7	Rest	≤0.3	0.1-0.18	≤0.03	0.3-0.4	≤0.2

Fe is the basis.
GOST 4543-71 regulates the content of high-quality steel: P≤0,025%; S≤0.015%; Сu≤0.25%.

Mechanical properties

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²	HB, MPa	HRC
Quenching in oil from 850 °C + vacation
-	250	1460	1710	10	45	549	-	49
-	300	1440	1620	10	47	510	-	47
-	400	1350	1450	10	42	402	-	44
-	500	1220	1320	12	45	677	-	40
-	600	1020	1120	16	64	1060	-	35
Quenching in oil from 850 °C + vacation at 600 °C, air cooling
≤25	-	1080	1180	12	50	765	-	-
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
140-160	-	1080	1190	15	56	991	-	-
Quenching + tempering (forgings)
500-800	-	640	785	10	30	383	248-293	-
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
200-240	-	1080	1180	16	53	951	-	-
Quenching + tempering (forgings)
500-800	-	685	835	10	30	383	262-311	-
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
100-120	-	1080	1190	15	53	893	-	-
Quenching + tempering (forgings)
300-500	-	735	880	11	30	383	277-321	-
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
140-160	-	1000	1140	14	52	834	-	-
Quenching + tempering (forgings)
100-300	-	785	930	11	35	481	293-331	-
Quenching in oil or water from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
200-240	-	900	1050	15	53	716	-	-
Quenching + tempering (forgings)
300-500	-	785	930	10	30	383	293-331	-
Quenching in oil from 860 °C to + vacation at 600 °C, air cooling (named place of cutting out of samples)
160-200	-	940	1080	16	53	716	-	-
160-200	-	890	1040	16	50	628	-	-
25-50	-	1060	1180	17	56	1207	-	-
50-80	-	920	1020	16	53	804	-	-

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
HB	Brinell hardness number
HRC	Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature	Е, HPa	G, HPa	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C	С, J/(kg · °C)
0	212	84	36	278	-	-
20	212	-	36	278	-	-
100	204	80	36	335	125	496
200	198	78	35	432	128	508
300	186	74	35	517	133	525
400	173	68	34	613	135	538
500	166	65	33	720	14	567
600	156	61	31	825	143	601
700	139	53	30	940	145	672
800	127	48	29	-	145	672
1000	-	-	-	-	11	697

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
G	Modulus of elasticity shear torsion
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity

Technological properties

Name	The value
Weldability	difficult weldability.
Склонность к отпускной хрупкости	tend not
The temperature of forging	Start - 1240 °C, the end - 780 °C. the cross Sections up to 50 mm are cooled in boxes, 51-700 mm are subjected to low-temperature annealing, one hypothermia.
Flock-sensitive sensitivity	sensitive

Steel 36KH2N2MFA (36ХН1МФА)

Designation

Description

Note

Standards

Chemical composition

Mechanical properties

Description mechanical marks

Physical characteristics

A description of the physical symbols

Technological properties

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