DIN 1.7711 Structural and constructional steels

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

Data updates

Latest Update: 2025-03
Total number of updates: 8
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DIN 1.7711 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.015
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.36 – 0.44
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.90 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
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
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
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

EN 10269: 2013 / Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

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DIN 1.7711 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 211 GPa
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Shear Modulus
val1
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GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
val1
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Thermal Conductivity
33 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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This material has 693 properties — only a subset is shown here.

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DIN 1.7711 Heat Treatments

  • For diameters <= 100 mm: (+QT) Quenched: 880-950°C, cooled in water or oil, Tempered: 670-720°C.
    For diameters > 100 to 160 mm:(+QT) Quenched: 940-970°C, cooled in water or oil, Tempered: 600-700°C.
  • Hot forming: 1100-850°C;
    Hardening, quenching or solution annealing (cooling in oil or air): 880-930°C;
    Tempering or age hardening or precipitation hardening: 670-730°C; min. 2h
    Stress relieving annealing: 570-640°C.
    Because of its importance with regard to embrittlement, it is not permissible to go above the quenching temperature or below the tempering temperature quoted.

DIN 1.7711 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
850 — 1000 MPa
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Elongation, A
14 %
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Reduction of Area
val1
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%
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Impact Energy
val1
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J
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Brinell Hardness (HB)
≤ 241
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  • 210 Cross References
  • 17 Composition
  • 55 Mechanical Properties
  • 72 Physical Properties
  • 2 Heat Treatment
  • - Metallography
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  • 3 Stress-Strain
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  • - Fatigue
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