σU
MPa
σP
MPa
ϵL
KCU103
Jm2

20HGNM

For the manufacture of parts subjected to high vibration and dynamic loads.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, % Mo, %
GOST 4543-71 96.28–98 0.17–0.37 0.7–1.1 0.4–0.7 < 0.3 0.4–0.7 < 0.035 0.18–0.23 < 0.035 0.15–0.25

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \sigma_{P}σP, MPaMPa \epsilon_LϵL, % KCU\cdot 10^{3}KCU103, \frac{J}{m^2}Jm2 Treatment
Alloy GOST 4543-71 1180–1570 930 7 590 Tempering 860 ° C, oil, Holidays 150-180 ° C, air

Analogues

USA Germany
K12147 1.6523 (21NiCrMo2)

Standards

Standard Description
GOST 4543-71

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength
\sigma_{P}σP MPaMPa Proportionality limit
\epsilon_LϵL % Elongation at break (longitudinal)
KCU\cdot 10^{3}KCU103 \frac{J}{m^2}Jm2 Impact toughness