A11

Carbon Sulfur Steel.

Bolts, nuts, processed by cutting. In the automotive industry — a plug of inclusion of coupling, chain.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Improved machinability structural steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, %
GOST 1414-75 97.43–98.92 < 0.1 0.8–1.2 < 0.25 < 0.25 < 0.25 0.06–0.12 0.07–0.15 0.15–0.25

Information on suppliers

Physical characteristics

Temperature, °C $$\rho$$, $$\frac{kg}{m^3}$$
20 7840

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\psi$$, % d5, % Treatment
Rental hot rolled. GOST 1414-75 hot rolling 410 34 22
Rental calibrated. Hardened. GOST 1414-75 calibrated, cold-work 490 390 10

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Rental calibrated. Hardened. GOST 1414-75 calibrated, cold-work 207
Rental hot rolled. GOST 1414-75 hot rolling 160

Technological Properties

Flake Susceptibility Propensity to temper brittleness
not sensitive not inclined

Analogues

USA Bulgaria Germany
G12120 A9 11 SMn 30

Standards

Standard Description
GOST 1414-75

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 physical characteristics

Parameter Units of measurement Description
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

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