DIN 1.8936 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2022-04
Total number of updates: 7
Update History

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DIN 1.8936 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.020
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
CEV
VALUE
≤ 0.51
UNIT
%
CAS NUMBER
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
Zr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-67-7

EN 10222-4: 2017 / Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength

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DIN 1.8936 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 424 properties — only a subset is shown here.

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DIN 1.8936 Heat Treatments

  • Quenched and tempered: 860-940°C, cooled in oil, polymer or water. Tempered at 600-700°C.
  • Quenching and tempering:
    Hardening at 860-940°C, after reaching the temperature in the entire cross-section quenched in water, oil or cooling in air.
    Tempering at 560-700°C, heat duration according to DIN EN ISO 4885 min. 30 min, cooling in still air.
    Normalizing at 880-960°C, after reaching the temperature in the entire cross-section cooling in still air.
    Heat treatment after welding:
    Stress relief annealing at 530-580°C. Cooling in still air or in the furnace. The duration required for the specified annealing temperatures includes heating through and holding within the temperature range and depends on the thickness of the components. When measuring the annealing temperature at the component surface, the following guide values are recommended for this depending on the thickness:
    ≤ 15 mm at least 15 min
    > 15 mm ≤ 30 mm at least 30 min
    > 30 mm ≤ 350 mm at least 60 min
    > 350 mm about 120 min
    The maximum heat duration according to DIN EN ISO 4885 for the usual stress-relief annealing is 150 min. For a heat duration > 90 min or for multiple annealing, the lower limit of the temperature range should be aimed for.

DIN 1.8936 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
325 MPa
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Tensile Strength
510 — 680 MPa
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Elongation, A
18 %
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Impact Energy
val1
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J
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  • 101 Cross References
  • 30 Composition
  • 109 Mechanical Properties
  • 3 Physical Properties
  • 2 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • 2 Joints
  • - Coatings
  • 136 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
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