SHH15 (ShH15-V, SHH15-SH)

For the manufacture of parts of ball and roller bearings, bushings plungers, plungers, heating valves, housings and diffusers. parts, the tubular billet.

SHH15 produced in an acid open-hearth furnaces, SHH15-sh produced by electroslag remelting, SHH15-V smelted in electric arc furnaces with pumping.

Substitute: SHH9, SHH12, SHH15SG

Balls with a diameter of 150 mm, roller diameter up to 23 mm, the ring bearing with a wall thickness up to 14 mm, bushings plungers, plungers, pressure valves, body sprays, roller lifters and other parts that demand high hardness, wear resistance and contact strength.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Bearing structural steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % P, % C, % S, % O, %
GOST 801-78 > 95.9215 0.17–0.37 0.2–0.4 1.3–1.65 < 0.01 < 0.25 < 0.3 < 0.027 0.95–1.05 < 0.02 < 0.0015

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 2.11 7812
100 11.9 7790 390
200 15.1 40 7750 470
300 15.5 7720 520
400 15.6 37 7680
500 15.7 32 7640

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\psi$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ d5, % Treatment
Steel GOST 801-78 annealing 590–730 370–410 45 440 20 Annealing 800 ° C, oven 15 ° C / h

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 801-78 179–207

Technological Properties

Flake Susceptibility Propensity to temper brittleness
sensitive inclined

Critical point temperatures

Ac1, K Ac3(Acm), K Ar3(Arcm), K Ar1, K Mn, K
724 900 713 700 210

Analogues

USA European Union Germany
J19965 1.2067 1.3505

Standards

Standard Description
GOST 801-78

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
O % Oxygen

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\psi$$ % Reduction in cross section on fracture
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Ar3(Arcm) K
Ar1 K
Mn K