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Steel 65G (65Г1)

70G steel Steel 60S2HFA Steel 60KhFA (60KhF) Steel 65 Steel 65G (65G1) Steel 65GA Steel 65S2VA Steel 68A Steel 68GA Steel 70 Steel 60S2HG Steel 70G2 Steel 70S2HA (EI142) Steel 70C3A 70KhGFA steel Steel 75 Steel 80 Steel 85 KT-2 steel KT-3 steel Steel 55S2A Steel 3K-7 Steel 40P Steel 50RA (50P) 50KhG steel 50KhGA steel 50KhGFA steel Steel 50KhFA (50KhF) 51KhFA steel Steel 55C2 Steel 60С2Х (60С2ХА; 60С2ХАA) Steel 55S2GF Steel 55KhGR Steel 55KhFA (55KhF) 60G steel Steel 60C2 Steel 60S2A Steel 60S2G Steel 60C2H2A

Designation

Name The value
Designation GOST Cyrillic 65Г
Designation GOST Latin 65G
Transliteration 65G
The chemical elements 65Mn
Name The value
Designation GOST Cyrillic 65Г1
Designation GOST Latin 65G1
Transliteration 65G1
The chemical elements 65Mn1

Description

Steel 65G used: for the production of springs, springs, thrust washers, brake bands, friction discs, gears, flanges, bearing housing, clamping and feed collets and other details, which are requirements of high wear resistance and running without shock loads; wire of square, rectangular and trapezoidal cross-sections designed for the manufacture of spring washers; blades of earth-moving machinery (bulldozers, scrapers, cultivators, graders and graders, as well as to the dozer and grader blades equipment excavators, rollers and other earth moving machines); rolled heat-treated strip thickness 0.15−2.00 mm for the manufacture of spring details and springs, with the exception of the crown; measuring tapes; quenched and tempered carded a round wire and shaped steel used for the manufacture of brackets needle products; wire square, rectangular and trapezoidal cross-sections designed for the manufacture of spring washers; valve spring compressors, exposed after coiling heat treatment (hardening and tempering).

Note

Steel spring alloy.

Standards

Name Code Standards
Sectional and shaped rolling В32 GOST 1051-73, GOST 7417-75, GOST 7419-90, GOST 8559-75, GOST 8560-78, GOST 14955-77, GOST 14959-79, TU 14-1-2118-77, TU 14-1-3287-81, TU 14-1-3861-84, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
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 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 14-1-1832-76, TU 14-1-2004-77, TU 14-1-4118-86, TU 14-1-417-72, TU 14-1-4516-88, TU 14-229-284-89, TU 14-15-330-94, TU 14-1-4118-2004
Test methods. Packaging. Marking Л19 GOST 19030-73
Tapes В34 GOST 2283-79, GOST 10234-77, GOST 21997-76, TU 1231-004-20504276-2000, TU 3-939-81, TU 14-4-469-73, TU 14-4-473-73, TU 14-4-281-73
Low-carbon steel wire В71 GOST 3875-83
Sheets and stripes В23 GOST 82-70, GOST 103-2006
Steel wire medium- and high-carbon В72 GOST 9389-75, GOST 11850-72, GOST 26366-84, TU 3-663-85, TU 14-4-378-73, TU 14-4-386-73, TU 14-4-855-77
Classification, nomenclature and general norms В20 OST 1 90005-91

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 14959-79 0.62-0.7 ≤0.035 ≤0.035 0.9-1.2 ≤0.25 0.17-0.37 ≤0.25 The rest ≤0.2
GOST 17152-89 (ИСО 7129-82 0.62-0.7 ≤0.035 ≤0.035 0.9-1.2 ≤0.25 0.17-0.37 ≤0.25 The rest ≤0.2
Fe is the basis.
According to GOST 17152-89 (ISO 7129-82), according to the manufacturer's agreement with the customer, the profiles are made with the elements content: С ≤ 0.80%, Mn ≤ 1.40%. The upper limits of carbon and manganese should not coincide. The austenitic grain size should not be larger than 5 numbers in accordance with GOST 5639.

Mechanical characteristics

Section, mm t отпуска, °C sT|s0,2, MPa σB, MPa d5, % d4 d d10 y, % HRC HV, MPa
Tape flatted average strength of 0.1-4.0 mm according to GOST 10234-77 in the state of delivery (indicated delivery)
- - - 780-1270 - - - - - - -
- - - 780-930 - - - - - - -
- - - 930-1080 - - - - - - -
- - - 1080-1230 - - - - - - -
- - - ≤780 - - ≥10 - - - -
- - - ≤570 - - - - - - -
Carden wire 0.2-0.8 mm as supplied by GOST 3875-83 (samples)
- - - 2160-2350 - - - - - - -
- - - 2351-2550 - - - - - - -
Wire square, rectangular and trapezoidal cross sections according to GOST 11850-72
0.6-12 - - 590-780 - - - - - - -
Rolled steel. Hardened in oil from 830 °C to + Vacation
- 200 ≥1790 ≥2200 ≥4 - - - ≥30 ≥61 -
Rolled steel. Hardened in oil from 830 °C to + Vacation at 350 °C
- - ≥1370 ≥1670 ≥15 - - - ≥44 - -
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
- - - - - - - - - 44-48 -
Wire square, rectangular and trapezoidal cross sections according to GOST 11850-72
0.6-12 - - 490-780 - - - - - - -
Rolled steel. Hardened in oil from 830 °C to + Vacation
- 400 ≥1450 ≥1670 ≥8 - - - ≥48 ≥46 -
Rolled steel. Hardened in oil from 830 °C to + Vacation at 350 °C
- - ≥1220 ≥1370 ≥19 - - - ≥52 - -
Flattened strip (0.15 to 2.00 mm) spring for heat-treated parts and springs according to GOST 21997-76 (listed group strength tape)
- - - 1270-1570 - - - - - - 375-485
Wire square, rectangular and trapezoidal cross sections according to GOST 11850-72
0.6-3 - - ≤1130 - - - - - - -
Rolled steel. Hardened in oil from 830 °C to + Vacation
- 600 ≥850 ≥880 ≥15 - - - ≥51 ≥30 -
Rolled steel. Hardened in oil from 830 °C to + Vacation at 350 °C
- - ≥980 ≥1000 ≥20 - - - ≥70 - -
Flattened strip (0.15 to 2.00 mm) spring for heat-treated parts and springs according to GOST 21997-76 (listed group strength tape)
- - - 1580-1860 - - - - - - 486-600
Wire square, rectangular and trapezoidal cross sections according to GOST 11850-72
3-5 - - ≤980 - - - - - - -
Flattened strip (0.15 to 2.00 mm) spring for heat-treated parts and springs according to GOST 21997-76 (listed group strength tape)
- - - ≥1860 - - - - - - ≥600
Wire square, rectangular and trapezoidal cross sections according to GOST 11850-72
0.6-3 - - ≤1230 - - - - - - -
Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
0.1-1.5 - - ≤640 - ≥15 - - - - -
1.5-4 - - ≤740 - ≥10 - - - - -
0.1-1.5 - - ≤630 - ≥15 - - - - -
1.5-4 - - ≤630 - ≥11 - - - - -
0.1-4 - - 740-1180 - - - - - - -
Hot-rolled sheet. After normalization
≤80 - - ≥730 ≥12 - - - - - -
Flats on the other 14-1-4118-2004
- - 590-830 - ≥10 - ≥12 - - -
Rolled steel. Quenching in oil with 790-820 °C + Vacation at 550-580 °C, air cooling
40-60 - ≥690 ≥880 ≥8 - - - ≥30 30-35 -
Rolled steel. Quenching in oil from 800-820 °C + Vacation at 340-380 °C, air cooling
20 - ≥1220 ≥1470 ≥5 - - - ≥10 44-49 -
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 ≥8 - - - ≥30 - -

Description mechanical marks

Name Description
Section Section
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σB Limit short-term strength
d5 Elongation after rupture
d4 Elongation after rupture
d Elongation after rupture
d10 Elongation after rupture
y The relative narrowing
HRC Rockwell hardness (indenter diamond spheroconical)
HV The Vickers hardness

Physical characteristics

Temperature Е, ГПа G, ГПа r, кг/м3 l, Вт/(м · °С) a, 10-6 1/°С С, Дж/(кг · °С)
0 215 84 7850 37 - -
20 215 - 7850 37 - -
100 213 83 7830 36 118 490
200 207 80 7800 35 126 510
300 200 77 - 34 132 525
400 180 70 7730 32 136 560
500 170 65 - 31 141 575
600 154 58 - 30 146 590
700 136 51 - 29 145 625
800 128 48 - 28 145 625
1000 - - - - 118 705

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
С Specific heat

Technological properties

Name The value
Weldability Does not apply to welded structures. KTS - no restrictions.
Propensity to temper brittleness Inclined when the content of Mn ≥ 1,0 %.
Forging temperature Start - 1250 °C, the end - 760-780 °C. the cooling of the workpiece cross-section up to 100 mm can be carried out in air, section 101-300 mm - mulde.
Flock-sensitive sensitivity Insensitive.
Workability by cutting In the hardened and tempered condition, when blower SB 240 HB=820 MPa Kn TV.SPL.=0,85 Kn b.St.=0,80.

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