EN 1.7380 Structural and constructional steels

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

Data updates

Latest Update: 2024-07
Total number of updates: 7
Update History

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EN 1.7380 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
Al total; Shall be determined and given in the inspection document.
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.08 – 0.14
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
2.00 – 2.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Cu+6Sn
VALUE
val1
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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
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
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 10028-2: 2017 / Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties

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EN 1.7380 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Shear Modulus
val1
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GPa
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Dynamic Modulus of Elasticity
val1
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GPa
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Density
val1
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kg/dm³
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Poisson Coefficient
val1
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Thermal Conductivity
33 — 50 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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Electrical Resistivity
0.18 — 0.298 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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This material has 1044 properties — only a subset is shown here.

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EN 1.7380 Heat Treatments

  • Austenitized: 920 - 980°C; Tempered: 650 - 750°C.
  • Normalizing and tempering (+NT): 900-960°C, air cooling. Tempering: 680-750°C, air cooling. Normalizing includes Normalizing Forming, Normalized Forming shall be carried out in a temperature range from 880-1000°C.
    It may be necessary in the case of wall thickness T above 10 mm or T/D > 0.15 to apply quenching and tempering in order to achieve the intended structure and material properties.

EN 1.7380 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
250 MPa
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Tensile Strength
450 — 630 MPa
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Elongation, A
17 %
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Impact Energy
val1
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J
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  • 221 Cross References
  • 41 Composition
  • 194 Mechanical Properties
  • 86 Physical Properties
  • 7 Heat Treatment
  • 4 Metallography
  • - Machinability
  • 15 Stress-Strain
  • - Formability
  • 38 Fatigue
  • - Fracture
  • 4 Creep
  • 66 Joints
  • - Coatings
  • 187 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
  • 181 Total Suppliers