1.8978 (L555MB)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels High Strength Weldable Steels not Intended for Heat Treatment by User

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % V, % Al, % P, % C, % S, % Nb, % Mo, % N, %
EN 10208-2 96.303–99.985 < 0.45 < 1.8 < 0.3 < 0.06 < 0.25 < 0.3 < 0.1 0.015–0.06 < 0.025 < 0.16 < 0.02 < 0.06 < 0.1 < 0.012

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.5}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
625 555–675 18

Standards

Standard Description
EN 10208-2

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma_{0.5}$$ $$MPa$$ Tensile stress required to produce a total elongation of 0.5%
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)