1.8902 (S420N)

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, % CEV, %
94.83–99 < 0.6 1–1.7 < 0.3 < 0.05 < 0.55 < 0.8 < 0.2 < 0.02 < 0.03 < 0.2 < 0.025 < 0.05 < 0.1 < 0.025 < 0.52

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers σU, MPa σY, MPa ϵL(L0=5.65So√), % KVL, J KVT, J Treatment
< 100 520–680
100–200 500–650
200–250 500–650 320 18
< 16 420 19
16–40 400 19
40–63 390 19
63–80 370 18
80–100 360
100–150 340
150–200 330
normalization 55 31
80–200 18

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
CEV % Cerium

Description of mechanical properties

Parameter Units of measurement Description
σY MPa Yield strength
σU MPa Ultimate tensile strength
ϵL(L0=5.65So√) % Elongation at break (longitudinal) (for L0 = 5.65√So)
KVL J Impact energy (longitudinal)
KVT J Impact energy (transverse)