DIN 1.7131 Structural and constructional steels

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

Data updates

Latest Update: 2025-02
Total number of updates: 14
Update History

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DIN 1.7131 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.14 – 0.19
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.80 – 1.10
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
1.00 – 1.30
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 10132-2: 2000 / Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 2: Case hardening steels

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DIN 1.7131 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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DIN 1.7131 Heat Treatments

  • Blank hardening (cooling in oil): 870°C; End quench test: quench from 870°C Carburizing: 900-950°C; Core hardening: 850-880°C; Case hardening (cooling in oil): 810-840°C; Tempering: 170-210°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 1.7131 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
530 MPa
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Elongation, A
10.2 %
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Reduction of Area
val1
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%
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Shear Strength
val1
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MPa
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Impact Energy
val1
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J
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Brinell Hardness (HB)
138 — 287
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Rockwell Hardness (HR)
val1
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Vickers Hardness (HV)
val1
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Grain Size
val1
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  • 264 Cross References
  • 80 Composition
  • 182 Mechanical Properties
  • 5 Physical Properties
  • 26 Heat Treatment
  • 3 Metallography
  • - Machinability
  • 54 Stress-Strain
  • 37 Formability
  • 3 Fatigue
  • - Fracture
  • - Creep
  • 9 Joints
  • - Coatings
  • 8 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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