1.0471 (20MnNb6)

Classification

Country Section Category
Germany Non-alloy Steels Steels with Average 0,12% =< C < 0,25% or 400 MPa = < Rm < 500 MPa

Chemical composition

Standard Fe, % Si, % Mn, % Cu, % Al, % P, % C, % S, % Nb, %
EN 10216-2 97.435–98.835 0.15–0.35 1–1.5 < 0.3 < 0.06 < 0.025 < 0.22 < 0.01 0.015–0.1

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{Y}, MPa \epsilon_L, % \epsilon_T, % KV_{L}, J KV_{T}, J Treatment
normalization 500–650 22 20 40 27
< 16 normalization 355
16–40 normalization 345
40–60 normalization 335

Standards

Standard Description
EN 10216-2

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
\sigma_{Y} MPa Yield strength
\sigma _{U} MPa Ultimate tensile strength
\epsilon_L % Elongation at break (longitudinal)
\epsilon_T % Elongation at break (transverse)
KV_{L} J Impact energy (longitudinal)
KV_{T} J Impact energy (transverse)