Germany · DIN

1.6213

WB 388:2001 — WB 388

Chemical composition

wt% · log scale
0.010.1110Al0.02C0.14Mn0.8 – 1.6Nb0.05Ni0.5 – 0.8P0.03S0.25Si0.15 – 0.5
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥305 MPaTensile strength Rm440–560 MPaElongation A≥23 %bars, heavy plate, 30.00 < t ≤ 50.00mm, hot rolled normalizedYield strength Rp0.2≥315 MPaTensile strength Rm440–560 MPaElongation A≥23 %bars, heavy plate, t ≤ 30.00mm, hot rolled normalized

High / low temperature

value vs. temperature
21.835.248.561.875.2-60-60-50-50-40-40-20-202020°C
  • bars ， heavy plates t ≤ 50.00mm hot rolled and normalized · Impact energy Kv/Ku

Chemical composition

ElementminmaxSimilarRemarks
Al0.02Total
C0.14
Mn0.81.6
Nb0.05
Ni0.50.8For product t <= 30.00mm is the lower limit up to 0.15%
P0.03
S0.25
Si0.150.5

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
bars, heavy plate, 30.00 < t ≤ 50.00mm, hot rolled normalized≥305440–560≥23
bars, heavy plate, t ≤ 30.00mm, hot rolled normalized≥315440–560≥23

High/low temperature

Impact energy Kv/Ku (J)
ConditionTemperature ℃minRemarks
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-2055Longitudinal; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-4050Longitudinal; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-5045Longitudinal; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-6040Longitudinal; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-2040Transverse/narrowest point; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-4035Transverse/narrowest point; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-5030Transverse/narrowest point; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized-6027Transverse/narrowest point; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized2070Longitudinal; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch
bars ， heavy plates t ≤ 50.00mm hot rolled and normalized2045Transverse/narrowest point; Average value of 3 test pieces. Minimum 30% below for individual test pieces; Charpy ISO-V notch