A40

For rolled products intended for the manufacture of shells and other welded structures of ships and floating structures

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % V, % Al, % As, % P, % C, % S, % Nb, % Mo, % N, %
GOST 5521-93 96.322–98.865 0.15–0.5 0.9–1.6 < 0.2 < 0.35 < 0.4 0.05–0.1 0.015–0.06 < 0.08 < 0.035 < 0.18 < 0.035 0.02–0.05 < 0.08 < 0.008

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Hire GOST 5521-93 510–650 390 20
Hire GOST 52927-2008 510–660 390 20

Standards

Standard Description
GOST 5521-93

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
V % Vanadium
Al % Aluminium
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
Nb % Niobium
Mo % Molybdenum
N % Nitrogen

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)