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Steel 60S2A

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 60С2А
Designation GOST Latin 60C2A
Transliteration 60S2A
The chemical elements 60С2

Description

Steel 60S2A used: for the manufacture of hot rolled plates; heavy-duty springs, torsion shafts, spring rings and washers, collets, friction discs, washers; spring persistent flat internal eccentric rings used for fixation of the parts in the housings to +200 °C; cold-rolled heat-treated ribbon with a thickness of 0.05 to 1.30 mm and 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.

Note

Steel spring alloy of high quality.

Standards

Name Code Standards
Sheets and stripes В23 GOST 103-2006
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 14-1-5416-2001, TU 3-761-80, TU 14-1-2118-77, TU 14-1-501-73, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
Sectional and shaped rolling В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Steel alloy wire В73 GOST 14963-78
Tapes В34 GOST 2283-79, GOST 21996-76, GOST 21997-76, TU 14-1-2992-80
Steel wire medium- and high-carbon В72 GOST 26366-84
Sheets and stripes В33 GOST 4405-75, TU 14-1-1123-74, TU 14-1-1409-75, TU 14-1-1986-77, TU 14-1-2108-77, TU 14-234-61-89, TU 14-130-278-96
Classification, nomenclature and general norms В20 OST 1 90005-91
Bulls. Blanks. Slabs В31 TU 14-1-1213-75

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
TU 14-1-1123-74 0.58-0.63 ≤0.025 ≤0.025 0.6-0.9 ≤0.3 1.6-2 ≤0.25 The rest ≤0.2
GOST 14959-79 0.58-0.63 ≤0.025 ≤0.025 0.6-0.9 ≤0.3 1.6-2 ≤0.25 The rest ≤0.2
Fe is the basis.

Mechanical characteristics

Section, mm t отпуска, °C sT|s0,2, MPa σB, MPa d5, % d4 y, % kJ/m2, кДж/м2 Brinell hardness number, MPa HRC HV, MPa
Tape cold-rolled heat-treated (0,05-1,30 mm) for spring parts and springs according to GOST 21996-76 and flattened strip (0,15-2,00 mm) according to GOST 21997-76 (listed group strength tape)
- - - 1270-1570 - - - - - - 375-485
- - - 1580-1860 - - - - - - 486-600
- - - ≥1860 - - - - - - ≥600
Rolled steel. Quenching in oil from 850 °C + Vacation
- 300 ≥1960 ≥2160 ≥2 - ≥36 ≥98 ≥462 - -
The rod 17 mm Quenching in oil from 860 °C to + Vacation at 550 °C (extract 3 hours). NV=340-364 at 20 °C
- - ≥1090 ≥1270 11-13 - ≥33 ≥235 - - -
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
- - - 1520-1770 - - - - - 44-48 -
Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
0.1-4 - - 780-1180 - - - - - - -
Rolled steel. Quenching in oil from 850 °C + Vacation
- 400 ≥1470 ≥1670 ≥7 - ≥39 ≥177 ≥425 - -
The rod 17 mm Quenching in oil from 860 °C to + Vacation at 550 °C (extract 3 hours). NV=340-364 at 20 °C
- - ≥930 ≥1220 ≥15 - ≥44 ≥422 - - -
Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
0.1-4 - - ≤880 - ≥8 - - - - -
Rolled steel. Quenching in oil from 850 °C + Vacation
- 500 ≥1080 ≥1290 ≥10 - ≥42 ≥285 ≥340 - -
The rod 17 mm Quenching in oil from 860 °C to + Vacation at 550 °C (extract 3 hours). NV=340-364 at 20 °C
- - ≥820 ≥950 ≥19 - ≥71 ≥432 - - -
Rolled steel. Quenching in oil from 850 °C + Vacation
- 600 ≥730 ≥1030 ≥17 - ≥48 ≥235 ≥298 - -
The rod 17 mm Quenching in oil from 860 °C to + Vacation at 550 °C (extract 3 hours). NV=340-364 at 20 °C
- - ≥510 ≥590 ≥23 - ≥87 ≥422 - - -
Rolled steel. Quenching in oil from 860 °C to + Vacation at 425 °C
- - ≥1570 ≥1710 ≥10 - ≥46 ≥314 - - -
- - ≥1370 ≥1670 ≥13 - ≥40 ≥334 - - -
Sheet hot-rolled thin (0.5-3.9 mm). Without termoobrabotki - supplied
0.5-3.9 - - ≤931 ≥13 - - - - - -
Rolled steel. Quenching in oil from 860 °C to + Vacation at 425 °C
- - ≥1270 ≥1570 ≥20 - ≥58 - - - -
Sheet. Isothermal annealing with 860-880 °C in molten salt (tсоли=310-330 °C) + vacation at 310-330 °C, air cooling
≤10 - ≥1570 ≥1770 ≥12 - ≥50 ≥608 - 47-50 -
Rolled steel. Quenching in oil from 860 °C to + Vacation at 425 °C
- - ≥1080 ≥1220 ≥22 - ≥71 - - - -
Wire with special surface finishes for the manufacture of springs cold-wound in the delivery condition according to GOST 14963-78
0.5-14 - - ≤1030 - - - - - - -
Spring. Wrapped at 850-950 °C. Quenching in oil from 850 -870 °C + Vacation at 430-460 °C, air cooling
- - - - - - - - 388-477 - -
Spring. Quenching in oil with 850-870 °C + Vacation at 400-450 °C, air cooling
- - - - - - - - 387-418 - -
Rolled steel. Quenching in oil from 870 °C to + Vacation at 470 °C
≤80 - ≥1324 ≥1471 ≥6 - ≥25 - - - -
Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Quenching in oil from 870 °C to + Leave at 420 °C
- ≥1375 ≥1570 ≥6 - ≥20 - ≤241 - -

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
y The relative narrowing
kJ/m2 Toughness
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)
0 212 82 7680 28 - -
20 212 - 7680 28 - -
100 206 80 7660 29 118 510
200 198 77 7630 29 127 510
300 192 74 7590 30 133 520
400 181 69 7570 30 137 535
500 178 68 7520 30 141 565
600 158 60 - 29 145 585
700 144 54 - 29 144 620
800 134 50 - 28 144 620
1000 - - - - 122 700

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 - 1200 °C, the end - of 800 °C. the cooling of the workpiece cross-section up to 250 mm in the air, 251-300 mm - in the pit.
Flock-sensitive sensitivity not sensitive.
Workability by cutting In hot-rolled condition at 270-320 HB and blower SB=1080 MPa Kn TV.SPL.=0,70 Kn b.St.=0,27.

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