EN 1.1178 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: European Union / EN

Data updates

Latest Update: 2024-12
Total number of updates: 7
Update History

This material has 1079 properties — only a subset is shown here.

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EN 1.1178 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.27 – 0.34
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 10083-1: 1991 / Quenched and tempered steels - Part 1: Technical delivery conditions for special steels (includes amendment A1:1996)

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EN 1.1178 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Shear Modulus
80 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
val1
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This material has 1079 properties — only a subset is shown here.

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EN 1.1178 Heat Treatments

  • Austenitizing (quenching in water): 850-890°C, t > 30 min. Tempering: 550-660°C, t > 60 min. Normalizing: 870-910°C, t > 30 min.

EN 1.1178 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
460 — 920 MPa
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Elongation, A
6 %
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Reduction of Area
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%
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Impact Energy
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J
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Brinell Hardness (HB)
145 — 198
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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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  • 502 Cross References
  • 46 Composition
  • 103 Mechanical Properties
  • 11 Physical Properties
  • 2 Heat Treatment
  • - Metallography
  • - Machinability
  • 23 Stress-Strain
  • - Formability
  • 10 Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • 6 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
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