ShKh15 / 100Cr6 / AISI 52100 Bearing Steel

Designation

Name The value
Designation GOST Cyrillic ШХ15
Designation GOST Latin ShX15
Transliteration ShH15
By chemical elements -

Description

Applications

ShKh15 is used for bearing rings, balls, rollers and other components that require high hardness, wear resistance and contact-fatigue strength. It is also used for selected bushings, plungers, pressure-valve components and bearing-quality wire, depending on the governing specification and delivery condition.

Equivalent grades and standards

ShKh15 is commonly compared with European 100Cr6 / 1.3505 and North American AISI 52100 bearing steel. These designations are not automatically interchangeable: chemical limits, cleanliness, heat treatment, testing and dimensional requirements must be checked against the applicable standard or drawing. The ShKh15F-Sh designation is used for an electroslag-remelted variant additionally alloyed with vanadium; confirm the exact specification before ordering.

Product forms

Existing Evek pages cover ShKh15 / 100Cr6 round bar and forgings and ShKh15 / 100Cr6 sheet and strip. Availability depends on grade, form, dimensions, condition and required documentation.

Request a quote

Send Evek LLC the required designation or standard, product form, dimensions, condition, quantity, certificates and delivery ZIP code. Typical delivery across the United States is 2–3 weeks, subject to specification and availability.

Contact Evek LLC to submit the requirements.

Standards

Name Code Standards
Sheets and strips В23 GOST 103-2006
Bars and shapes В22 GOST 2590-2006, GOST 2591-2006
Wire, steel, alloy В73 GOST 4727-83
Steel pipes and fittings to them В62 GOST 800-78, TU 14-3-1203-83, TU 14-3-335-75
Bars and shapes В32 GOST 801-78, GOST 7417-75, GOST 14955-77, GOST 21022-75, TU 14-1-1500-75, TU 14-1-2032-76, TU 14-1-232-72, TU 14-1-2398-78, TU 14-132-173-88, TU 14-1-3815-84, TU 14-1-5358-98, TU 14-11-245-88, TU 1142-250-00187211-96
Blanks. Of the workpiece. Slabs В31 TU 14-1-1213-75, TU 14-1-3680-83, TU 14-1-3911-85, TU 14-1-699-73
Sheets and strips В33 TU 14-1-2425-78, TU 14-19-18-87
Hard alloys, ceramic-metal products and metal powder В56 TU 14-22-139-99
Tape В34 TU 14-4-1112-80
Low carbon steel wire В71 TU 14-4-563-74

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 801-78 0.95-1.05 ≤0.02 ≤0.027 0.2-0.4 1.3-1.65 0.17-0.37 ≤0.3 Rest ≤0.25
GOST 21022-75 0.95-1.05 ≤0.01 ≤0.025 0.2-0.4 1.3-1.65 0.17-0.37 ≤0.3 Rest ≤0.25
Fe is the basis.
According to GOST 801-78 and TU 14-1-3911-85 the chemical composition is given for steel grade SHKh15. The total content of Ni + Cu≤ 0.50%. In steel, obtained by the method of electroslag remelting, the mass fraction of sulfur should not exceed 0.01%, and phosphorus 0.025%. When steel is smelted in acid open-hearth furnaces, the mass fraction of copper is allowed up to 0.30%, while maintaining the norm of the total share of copper and nickel is not more than 0.050%.
According to GOST 21022-75, the chemical composition is given for steel grade SHKh15-DSH, obtained by remelting in vacuum-arc furnace electrodes made of steel SHKh15, made of metal electroslag remelting.

Mechanical properties

Section, mm t отпуска, °C sT|s0,2, MPa σU, MPa d5, % d4 y, % KCU, kJ/m2 HB, MPa HRC
Rolled steel. Quenching in oil from 840 °C to + Vacation
- 200 1960-2200 2160-2550 - - - - - 61-63
- 300 1670-1760 2300-2450 - - - - - 56-58
- 400 1270-1370 1810-1910 - - - - - 50-52
- 450 1180-1270 1620-1710 - - - - - 46-48
Rolled steel. Quenching in water from 810 °C to 200 °C, then oil + Leave at 150 °C, air cooling
30-60 - - ≥1670 - - - ≥490 - 62-65
A sample with a diameter of 6 mm and a length of 30 mm, the deformed and annealed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- - ≥32 ≥42 ≥61 - ≥100 - - -
Rolled steel. Annealing at 800 °C, cooling with the furnace to 730 °C, then to 650 °C at a speed of 10-20 °C/h, air cooling
≤30 - 370-410 590-730 15-25 - 35-55 ≥432 179-207 -
A sample with a diameter of 6 mm and a length of 30 mm, the deformed and annealed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- - ≥28 ≥48 ≥62 - ≥100 - - -
Rolled steel. Annealing at 800°C, cooling with furnace at a rate of 15 °C/h
≤30 - 370-410 590-730 ≥20 - ≥45 ≥432 - -
A sample with a diameter of 6 mm and a length of 30 mm, the deformed and annealed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- - ≥20 ≥29 ≥72 - ≥100 - - -
- - ≥17 ≥25 ≥61 - ≥100 - - -
Rolled steel. Quenching in oil from 860 °C to + Vacation
- 400 - ≥1570 - - - ≥147 ≥480 -
A sample with a diameter of 6 mm and a length of 30 mm, the deformed and annealed. The rate of deformation of 16 mm/min strain Rate of 0.009 1/s
- - ≥18 ≥22 ≥76 - ≥100 - - -
Rolled steel. Quenching in oil from 860 °C to + Vacation
- 500 ≥1030 ≥1270 ≥8 ≥34 - ≥196 ≥400 -
Rolled steel. Hardened in oil from 830 °C to + Leave at 150 °C (1.5 h exposure)
- - - ≥2550 - - - ≥880 - -
Rolled steel. Quenching in oil from 860 °C to + Vacation
- 550 ≥900 ≥1080 ≥8 ≥36 - ≥235 ≥360 -
Rolled steel. Hardened in oil from 830 °C to + Leave at 150 °C (1.5 h exposure)
- - - ≥2650 - - - ≥690 - -
Rolled steel. Quenching in oil from 860 °C to + Vacation
- 600 ≥780 ≥930 ≥10 ≥40 - ≥334 ≥325 -
Rolled steel. Hardened in oil from 830 °C to + Leave at 150 °C (1.5 h exposure)
- - - ≥2600 - - - ≥640 - -
Rolled steel. Quenching in oil from 860 °C to + Vacation
- 650 ≥690 ≥780 ≥16 ≥48 - ≥54 ≥275 -

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)

Physical characteristics

Temperature Е, HPa G, HPa r, kg/m3 l, W/(m · °C) R, Mr. · m a, 10-6 1/°C
0 211 80 7812 - - -
20 211 - 7812 - - -
100 - - 7790 - 390 119
200 - - 7750 40 470 151
300 - - 7720 - 520 155
400 - - 7680 37 - 156
500 - - 7640 32 - 156
700 - - - - - 157

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 Method of welding - CCC.
Склонность к отпускной хрупкости Inclined.
The temperature of forging Start - 1150 °C, the end - of 800 °C. the cross Sections up to 250 mm are cooled in air, 251-350 mm - in the pit.
Flock-sensitive sensitivity Sensitive.
Machinability In hot-rolled condition, when blower SB 202 HB=740 MPa Kn TV.SPL.=0,90 Kn b.St.=0,36.
Sanding behaviour Good.