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Steel SHKH15

Steel 110Kh18M (110Kh18M-SHD) Steel 11X18M Steel 60X13S (60X13S-SHD) Steel 8Х4В9Ф2 (ЭИ347; 8Х4В9МФ2) Steel 8X4M4V2F1 (DI43) ShKh10 steel ShKh15 steel ShKh15S2G3 steel ShKh15SG steel ShKh15SM steel (DI36) ShKh20SG steel ShKh4 steel

Designation

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

Description

Steel SHKH15 is used: for the production of seamless cold — and hot-deformed tubes for the manufacture of rings, ball and roller bearings; balls with a diameter of 150 mm, roller diameter up to 23 mm; bushings plungers, plungers; pressure valves; housings dispensers; roller tappets and other parts that demand high hardness, wear resistance and contact strength; autogenous round wire with a diameter of 1.4−10.0 mm for the manufacture of balls, rollers and bearing rings.

Note

Steel ШХ15Ф-sh electroslag remelting additionally alloyed with vanadium.

Standards

Name Code Standards
Sheets and stripes В23 GOST 103-2006
Sectional and shaped rolling В22 GOST 2590-2006, GOST 2591-2006
Steel alloy wire В73 GOST 4727-83
Pipes steel and connecting parts to them В62 GOST 800-78, TU 14-3-1203-83, TU 14-3-335-75
Sectional and shaped rolling 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
Bulls. Blanks. Slabs В31 TU 14-1-1213-75, TU 14-1-3680-83, TU 14-1-3911-85, TU 14-1-699-73
Sheets and stripes В33 TU 14-1-2425-78, TU 14-19-18-87
Solid alloys, metal-ceramic products and powders, metal В56 TU 14-22-139-99
Tapes 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 The 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 The 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 characteristics

Section, mm t отпуска, °C sT|s0,2, MPa σB, MPa d5, % d4 y, % kJ/m2, кДж/м2 Brinell hardness number, 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
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)

Physical characteristics

Temperature Е, ГПа G, ГПа r, кг/м3 l, Вт/(м · °С) R, НОм · м a, 10-6 1/°С
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.
Propensity to temper brittleness Inclined.
Forging temperature 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.
Workability by cutting In hot-rolled condition, when blower SB 202 HB=740 MPa Kn TV.SPL.=0,90 Kn b.St.=0,36.
Grindability Good.

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