AT

Classification

Country Section Category
CIS, Russia, Ukraine Steels for special purposes Steels for shipbuilding

Chemical composition

Standard Fe, % Si, % Mn, % Al, % As, % P, % C, % S, % N, %
GOST 5521-93 < 98 0.15–0.37 0.4–1.1 < 0.06 < 0.08 < 0.04 < 0.21 < 0.04 < 0.008

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$\epsilon_L$$, % d5, % Treatment
Hire GOST 5521-93 400–490 235 22
Hire GOST 52927-2008 400–520 232 22

Standards

Standard Description
GOST 5521-93

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Al % Aluminium
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
N % Nitrogen

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)