1.6526 (20NiCrMoS2-2)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr-Ni-Mo with Mo < 0.4% + Ni < 0.2%

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Mo, %
96.705–98.26 < 0.4 0.65–0.95 0.35–0.7 0.4–0.7 < 0.025 0.17–0.23 0.02–0.04 0.15–0.25

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\psi$$, % Treatment
< 16 1100 57–62
annealing, carbide spheroidization 590

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 212
specified strength 161–212
specified strength, ferrite-pearlite composition 149–194

Standards

Standard Description
EN 10084
EN 10263-3
EN 10277-4
EN 10297-1

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\psi$$ % Reduction in cross section on fracture