35HGSA steel is used: for the manufacture of hot rolled plates; flanges, Cams, fingers, rollers, levers, axles, parts, welded structures and other improve parts of complex configuration, working under alternating loads.

Note

Structural steel high-quality chromonemata.

Standards

Name	Code	Standards
Sheets and strips	В23	GOST 103-2006
Bars and shapes	В32	GOST 1051-73, GOST 4543-71, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 10702-78, GOST 14955-77, TU 14-1-5414-2001, TU 14-1-2118-77, TU 14-11-245-88, TU 14-1-1271-75, TU 14-1-5228-93, TU 14-136-367-2008
Bars and shapes	В22	GOST 1133-71, GOST 8319.0-75, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Processing of metals by pressure. Forgings	В03	GOST 8479-70, ST ЦКБА 010-2004
Steel pipes and fittings to them	В62	GOST 8732-78, GOST 8734-75, GOST 9567-75, GOST 24950-81, GOST 8733-87, GOST 8731-87, TU 14-3-1654-89
Blanks. Of the workpiece. Slabs	В31	OST 3-1686-90, TU 14-1-4944-90
Sheets and strips	В33	TU 14-1-1409-75, TU 14-1-4118-86, TU 14-1-4118-2004

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	V	Ti	Mo	W
TU 14-1-4118-2004	0.32-0.39	≤0.025	≤0.025	0.8-1.1	1.1-1.4	1.1-1.4	≤0.3	Rest	≤0.3	≤0.05	≤0.03	≤0.15	≤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
Forgings. Hardening + Vacation
100-300	-	≥490	≥660	≥13	≥40	≥530	212-248	-
100-300	-	≥540	≥690	≥13	≥40	≥481	223-262	-
≤100	-	≥590	≥730	≥14	≥45	≥579	235-277	-
≤100	-	≥640	≥780	≥13	≥42	≥579	248-293	-
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water (longitudinal samples)
10-20	-	≥1000	≥1110	≥12	≥54	-	≥322	-
Rolled steel. Quenching in oil at 880 °C + Vacation
-	200	≥1570	≥1910	≥12	≥48	≥481	-	≥52
Samples for mahismati. Isothermal quenching at 880 °C in a mixture of potassium and sodium nitrate having a temperature of 280-310 °C, air cooling
-	-	≥1270	≥1620	≥9	≥40	≥383	-	-
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water or oil
-	-	≥1200	≥1300	≥11	≥52	-	-	-
Steel calibrated and calibrated with special surface finish, hot rolled and hot rolled with special surface finish
-	-	-	-	-	-	-	≤241	-
Forgings. Annealing in air at 880 °C to + Leave at 500 °C, air cooling
100-300	-	≥490	≥660	≥13	≥40	≥530	-	-
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water (longitudinal samples)
20-40	-	≥940	≥1080	≥11	≥50	-	≥310	-
Rolled steel. Quenching in oil at 880 °C + Vacation
-	300	≥1550	≥1760	≥12	≥50	≥579	-	≥50
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water or oil
-	-	-	≥1260	≥12	≥57	-	-	-
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water (longitudinal samples)
40-60	-	≥860	≥960	≥11	≥46	-	≥270	-
Rolled steel. Quenching in oil at 880 °C + Vacation
-	400	≥1420	≥1620	≥12	≥51	≥432	-	≥47
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water or oil
-	-	-	≥1000	≥14	≥72	-	-	-
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600 °C, cooling in water (longitudinal samples)
20-40	-	≥810	≥970	≥14	≥58	-	≥280	-
Rolled steel. Quenching in oil at 880 °C + Vacation
-	500	≥1180	≥1300	≥14	≥52	≥432	-	≥42
Rolled steel. Quenching in oil at 880 °C to + Leave at 500 °C, cooling in water or oil
-	-	-	≥540	≥31	≥70	-	-	-
Rolled steel. Quenching in oil at 880 °C to + Vacation at 600 °C, cooling in water (longitudinal samples)
40-60	-	≥780	≥880	≥13	≥58	-	≥250	-
Rolled steel. Isothermal quenching from 880 °C in nitrate having a temperature of 300 °C
-		≥1460	≥1670	≥12	≥52	≥687	-	≥50
-	300	≥1450	≥1670	≥12	≥55	≥697	-	≥50
-	400	≥1410	≥1570	≥14	≥54	≥520	-	≥48
-	500	≥1220	≥1330	≥14	≥53	≥383	-	≥43

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	r, kg/m³	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C	С, J/(kg · °C)
0	215	84	7850	38	210	-	-
20	215	83	7850	38	210	-	-
100	211	82	7830	38	-	117	496
200	203	79	7800	37	-	123	504
300	195	75	7760	37	-	129	512
400	185	71	7730	36	-	134	535
500	175	66	7700	34	-	137	585
600	165	62	7670	33	-	140	620
700	144	54	-	31	-	143	625
800	125	47	-	30	-	143	695

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	Limited weldability. Welding methods: SMAW, ADS submerged arc and gas protection, ARDS. Recommended heating and subsequent heat treatment is required, the CCC without restriction.
The tendency to temper brittleness	Inclined.
The temperature of forging	Start - 1250 °C, the end - 860-880 °C. the cross Sections up to 100 mm are cooled in air, 101-200 mm - mulde, 201-300 mm - with oven.
Flock-sensitive sensitivity	Sensitive.
Machinability	In hot-rolled condition in NV 207-217 blower SB=710 MPa Kn TV.SPL.=0,85 Kn b.St.=0,75.