1.5511 (35B2)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels B, Mn-B Mn < 1.65%

Chemical composition

Standard Fe, % Si, % B, % Mn, % Al, % P, % C, % S, %
EN 10269 98.315–99.1792 < 0.4 0.0008–0.005 0.5–0.8 < 0.02 < 0.035 0.32–0.39 < 0.035

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.2}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % $$KV_{L}$$, $$J$$ Treatment
annealing, carbide spheroidization 570 62
moderate hardening 500–650 300 22 45 39–55

Standards

Standard Description
EN 10269

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Mn % Manganese
Al % Aluminium
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)
$$\psi$$ % Reduction in cross section on fracture
$$KV_{L}$$ $$J$$ Impact energy (longitudinal)