DIN 1.1170 Structural and constructional steels

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

Data updates

Latest Update: 2025-04
Total number of updates: 8
Update History

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DIN 1.1170 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.2500 – 0.3200
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.4000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
1.3000 – 1.6500
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

DIN 1652-4: 1990 / Bright steel made from steel for quenching and tempering; technical delivery conditions

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DIN 1.1170 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 715 properties — only a subset is shown here.

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DIN 1.1170 Heat Treatments

  • Annealing: 650-750°C; Normalizing: 850-880°C; Hardening in water: 820-850°C; Hardening in oil: 830-860°C; Tempering: 540-680°C
  • Austenitizing (at least 30 min), quenching in water or oil: 840-880°C (the temperatures at the lower end of the range are generally applicable to quenching in water and those at the upper end for quenching in oil), other quenching agents such as synthetic quenchants may also be used; Tempering: 540-680°C (at least 60 min); End quench test: 850 (±5°C); Normalizing: 850-890°C, austenitizing (at least 30 min).

DIN 1.1170 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
470 — 1000 MPa
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Elongation, A
11 %
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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)
≤ 255
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Grain Size
val1
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  • 219 Cross References
  • 68 Composition
  • 240 Mechanical Properties
  • 3 Physical Properties
  • 13 Heat Treatment
  • - Metallography
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  • 5 Fatigue
  • - Fracture
  • - Creep
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  • 6 Dimensions
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