DIN 1.1209 Structural and constructional steels

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

Data updates

Latest Update: 2019-06
Total number of updates: 1
Update History

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DIN 1.1209 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.52 – 0.60
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.40
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cr+Mo+Ni
VALUE
≤ 0.63
UNIT
%
CAS NUMBER
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
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

EN 10083-2: 2006 / Steels for quenching and tempering - Part 2: Technical delivery conditions for non alloy steels

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DIN 1.1209 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 865 properties — only a subset is shown here.

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DIN 1.1209 Heat Treatments

  • Annealing: 650-700°C; Normalizing: 830-860°C; Hardening in water: 805-835°C; Hardening in oil: 815-845°C; Tempering: 540-680°C
  • Austenitizing (quenching in water or oil): 805-845°C, t > 30 min. NOTE: The temperatures at the lower end of the range are generally applicable to hardening in water and those at the upper end for hardening in oil. Synthetic quenchants may also be used. Tempering: 550-660°C, t > 60 min. A mandatory end quench test shall be carried out at 830+/- 5°C. Normalizing: 825-865°C, t > 30 min.

DIN 1.1209 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
620 — 1000 MPa
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Elongation, A
10 %
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Reduction of Area
val1
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%
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Brinell Hardness (HB)
≤ 255
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Rockwell Hardness (HR)
val1
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  • 28 Composition
  • 107 Mechanical Properties
  • 3 Physical Properties
  • 9 Heat Treatment
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