1.0579 (S355J2G4C)

Classification

Country Section Category
Germany Non-alloy Steels Steels with Average 0,25% =< C < 0,55% or 500 MPa =< Rm < 700 MPa

Chemical composition

Standard Fe, % Si, % Mn, % Cu, % P, % C, % S, %
EN 10025 > 97.04 < 0.55 < 1.6 < 0.55 < 0.03 < 0.2 < 0.03

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.2}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
5–10 solid, cold drawn 630–950 520 6
10–16 solid, cold drawn 580–880 450 7
16–40 solid, cold drawn 530–850 350 8
40–63 solid, cold drawn 500–770 335 9
63–100 solid, cold drawn 470–740 315 9

Brinell hardness number

Rolling Standard Classifiers Value, HBW
rolling, turning 146–187

Technological Properties

Weldability
no limits

Standards

Standard Description
EN 10025

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cu % Copper
P % Phosphorus
C % Carbon
S % Sulfur

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma_{0.2}$$ $$MPa$$ Tensile stress required to produce a total elongation of 0.2%
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures