DIN 1.7147 Structural and constructional steels

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

Data updates

Latest Update: 2025-08
Total number of updates: 14
Update History

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DIN 1.7147 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.17 – 0.22
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.00 – 1.30
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.40
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
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 10277: 2018 / Bright steel products - Technical delivery conditions

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DIN 1.7147 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
80 — 210 GPa
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Density
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kg/dm³
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Poisson Coefficient
val1
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Thermal Conductivity
41 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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Electrical Resistivity
0.16 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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DIN 1.7147 Heat Treatments

  • End quench test: Quench from 870°C Carburizing: 880 to 980°C; NOTE: If steels are direct hardened, in general, a carburizing temperature of 950°C is not exceeded. For special procedures, for example under vacuum, higher temperatures (for example 1020 to 1050°C) are not unusual. Core hardening: 860 to 900°C; Case hardening: 780 to 820°C; Tempering: 150 to 200°C (as a guide, for 1 hour minimum).
  • Carburizing at 880 - 980°C. Core-hardening at 860 - 900°C, case hardening at 780 - 820°C, quenching. Tempering at 150 - 200°C.

DIN 1.7147 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
700 — 1470.9 MPa
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Elongation, A
9.6 — 19.2 %
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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)
140 — 301
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Rockwell Hardness (HR)
val1
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Grain Size
val1
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  • 310 Cross References
  • 39 Composition
  • 142 Mechanical Properties
  • 28 Physical Properties
  • 14 Heat Treatment
  • 15 Metallography
  • - Machinability
  • 5 Stress-Strain
  • 5 Formability
  • 3 Fatigue
  • - Fracture
  • - Creep
  • 3 Joints
  • - Coatings
  • 2 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
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