St4sp (VSt4sp)

I-beam, channel, angle steel

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Carbonaceous structural steel of ordinary quality

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % As, % P, % C, % S, % N, %
GOST 380-2005 97.652–99.27 0.15–0.3 0.4–0.7 < 0.3 < 0.3 < 0.3 < 0.08 < 0.04 0.18–0.27 < 0.05 < 0.008

Information on suppliers

Physical characteristics

Temperature, °C $$\rho$$, $$\frac{kg}{m^3}$$
20 7850

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Trumpet GOST 8731-87 412 245 20
Trumpet GOST 10705-80 412 245 21
Hire GOST 535-2005 410–530 235–265 21–24
The plates GOST 14637-89 410–530 235–265 21–23

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy 1430

Analogues

USA Germany
GradeA 1.0044 (S275JR)

Standards

Standard Description
GOST 380-2005

Description of chemical elements

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

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
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\epsilon_L$$ % Elongation at break (longitudinal)