Steel 65

Designation

Name	The value
Designation GOST Cyrillic	65
Designation GOST Latin	65
Transliteration	65
The chemical elements	65

Description

65 steel is used: for the production of springs, springs and other parts which require higher strength and elastic properties, the wear resistance of parts operating in conditions of friction in the presence of high static and vibratory loads; hot-rolled strip profile with a bias for agricultural machines; knives for earth-moving machinery (bulldozers, scrapers, graders and graders, as well as to the dozer and grader blades equipment excavators, rollers and other earth moving machines); tinned wire for the manufacture of tires rotors of electric machines.

Note

Steel spring carbon.

Standards

Name	Code	Standards
Sectional and shaped rolling	В22	GOST 1133-71, GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 9234-74, GOST 11474-76, GOST 12492.15-90, GOST 17152-89, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Armature, units and details of rolling stock of railways	Д55	GOST 11530-93
Sheets and stripes	В33	GOST 1577-93, GOST 4405-75, TU 14-1-4516-88
Tapes	В34	GOST 2284-79
Steel wire medium- and high-carbon	В72	GOST 7348-81, GOST 7372-79, GOST 9124-85, GOST 9389-75, GOST 26366-84
Sectional and shaped rolling	В32	GOST 7417-75, GOST 7419-90, GOST 8559-75, GOST 8560-78, GOST 14955-77, GOST 14959-79, TU 14-1-2118-77, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
Sheets and stripes	В23	GOST 82-70, GOST 19903-74, GOST 103-2006, GOST 19903-90

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu
GOST 17152-89 (ИСО 7129-82	0.62-0.7	≤0.035	≤0.035	0.5-0.8	≤0.25	0.17-0.37	≤0.25	The rest	≤0.2
GOST 14959-79	0.62-0.7	≤0.035	≤0.035	0.5-0.8	≤0.25	0.17-0.37	≤0.25	The rest	≤0.2

Fe is the basis.

Mechanical characteristics

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_B, MPa	d₅, %	d₄	y, %	Brinell hardness number, MPa	HRC
Cold-rolled steel strip of 0.1-4.0 mm in the delivery state according to GOST 2284-79
-	-	-	740-1130	-	-	-	-	-
-	-	-	440-740	-	≥10	-	-	-
-	-	-	440-630	-	≥11	-	-	-
Rolled steel 12 mm. Quenching in oil from 800 °C + Vacation
-	400	≥810	≥1220	≥5	-	-	-	≥45
Long products (samples). Quenching in oil from 800 °C + Vacation at 600-620 °C
-	-	-	≥690	≥16	-	-	≥185	-
Rolled steel 12 mm. Quenching in oil from 800 °C + Vacation
-	500	≥760	≥1130	≥13	-	≥40	-	≥32
Long products (samples). Quenching in oil from 800 °C + Vacation at 600-620 °C
-	-	-	≥640	≥14	-	≥19	≥185	-
Rolled steel 12 mm. Quenching in oil from 800 °C + Vacation
-	600	≥650	≥930	≥18	-	≥52	-	≥23
Long products (samples). Quenching in oil from 800 °C + Vacation at 600-620 °C
-	-	-	≥730	≥18	-	≥20	≥185	-
Cold-rolled steel strip. Normalization at 820 °C, air cooling
0.1-4	-	≥415	≥820	-	≥19	≥33	-	-
Long products (samples). Quenching in oil from 800 °C + Vacation at 600-620 °C
-	-	-	≥600	≥22	-	≥25	≥170	-
Cold-rolled steel strip. Annealing at 820 °C
0.1-4	-	≥415	≥810	-	≥22	≥33	-	-
Long products (samples). Quenching in oil from 800 °C + Vacation at 600-620 °C
-	-	-	≥450	≥27	-	≥35	≥140	-
Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Hardened in oil from 830 °C to + vacation at 470 °C
	-	≥785	≥980	≥10	-	≥35	-	-
Long products (samples). Quenching in oil from 800 °C + Vacation at 600-620 °C
-	-	-	≥280	≥33	-	≥50	≥120	-

Description mechanical marks

Name	Description
Section	Section
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_B	Limit short-term strength
d₅	Elongation after rupture
d₄	Elongation after rupture
y	The relative narrowing
HRC	Rockwell hardness (indenter diamond spheroconical)

Physical characteristics

Temperature	Е, ГПа	r, кг/м3	l, Вт/(м · °С)	a, 10-6 1/°С	С, Дж/(кг · °С)
0	205	7810	-	-	-
20	205	7810	-	-	-
100	-	-	68	11	483
200	-	-	53	116	-
400	-	-	36	132	525
500	-	-	31	138	-
300	-	-	-	123	483
600	-	-	-	142	525
700	-	-	-	146	-
800	-	-	-	147	-
900	-	-	-	139	-
1000	-	-	-	139	-
1200	-	-	-	148	-

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
a	The coefficient of linear expansion

Technological properties

Name	The value
Weldability	does not apply to welded structures.
Propensity to temper brittleness	tend not
Forging temperature	Start - 1230 °C, end - 830 °C. air Cooling.

Steel 65

Designation

Description

Note

Standards

Chemical composition

Mechanical characteristics

Description mechanical marks

Physical characteristics

A description of the physical symbols

Technological properties

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Steel 65

Designation

Description

Note

Standards

Chemical composition

Mechanical characteristics

Description mechanical marks

Physical characteristics

A description of the physical symbols

Technological properties

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