1.0644 (E590K2)

Classification

Country Section Category
Germany Non-alloy Steels Steels with Average C ≥ 0,55% or Rm ≥ 700 MPa

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % V, % Al, % P, % C, % S, % Nb, % Mo, % N, %
EN 10297-1 95.82–98.35 0.1–0.5 1.3–1.7 < 0.3 < 0.05 < 0.3 < 0.4 0.08–0.15 > 0.01 < 0.03 0.16–0.22 < 0.35 < 0.07 < 0.08 < 0.02

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers σU, MPa σY, MPa ϵL, % ϵT, % KVL, J KVT, J Treatment
< 16 moderate hardening 700 590 16 14 40 27
16–40 moderate hardening 650 540
40–65 moderate hardening 570 480
65–100 moderate hardening 520
65–80 moderate hardening 455
80–100 moderate hardening 420

Standards

Standard Description
EN 10297-1

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
σY MPa Yield strength
σU MPa Ultimate tensile strength
ϵL % Elongation at break (longitudinal)
ϵT % Elongation at break (transverse)
KVL J Impact energy (longitudinal)
KVT J Impact energy (transverse)