35g

Tie rods, axes, earrings, beams, levers, clutches, shafts, sprockets, cylinders, wheels, spindles, couplings of steam turbines, nuts, bolts, screws and other parts, which are requirements of low strength.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, %
GOST 4543-71 97.26–98.81 0.17–0.37 0.7–1 < 0.3 < 0.3 < 0.3 < 0.035 0.32–0.4 < 0.035

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{P}, MPa \epsilon_L, % \psi, % KCU\cdot 10^{3}, \frac{J}{m^2} Treatment
Rod GOST 4543-71 25 570 340 18 45 700 Tempering 860 ° C, the water, leave 600 ° C, air

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 4543-71 annealing 207

Technological Properties

Flake Susceptibility Propensity to temper brittleness
insensitive loathsome

Analogues

Germany USA
GS20Mn5 1035

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

Description of mechanical properties

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