Steel 60S2A

Designation

Name The value
Designation GOST Cyrillic 60С2А
Designation GOST Latin 60C2A
Transliteration 60S2A
By 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 strips В23 GOST 103-2006
Bars and shapes 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
Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Wire, steel, alloy В73 GOST 14963-78
Tape 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 strips 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 rules В20 OST 1 90005-91
Blanks. Of the workpiece. 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 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 Rest ≤0.2
Fe is the basis.

Mechanical properties

Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % d4 y, % KCU, kJ/m2 HB, 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
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
d4 Elongation after rupture
y The relative narrowing
KCU Toughness
HB Brinell hardness number
HRC Rockwell hardness (indenter diamond spheroconical)
HV The Vickers hardness

Physical characteristics

Temperature Е, HPa G, HPa r, kg/m3 l, W/(m · °C) a, 10-6 1/°C С, J/(kg · °C)
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.
Склонность к отпускной хрупкости Tend not.
The temperature of forging 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.
Machinability In hot-rolled condition at 270-320 HB and blower SB=1080 MPa Kn TV.SPL.=0,70 Kn b.St.=0,27.