EN 1.8814 Structural and constructional steels

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

Data updates

Latest Update: 2019-07
Total number of updates: 1
Update History

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EN 1.8814 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.020
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
CEV
VALUE
≤ 0.43
UNIT
%
CAS NUMBER
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
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
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

EN 10225: 2009 / Weldable structural steels for fixed offshore structures - Technical delivery conditions

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EN 1.8814 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 583 properties — only a subset is shown here.

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EN 1.8814 Heat Treatments

  • After welding, test welds which are to be tested in the PWHT condition shall be post-weld heat treated at either 580°C ± 20°C or at another temperature to be agreed. They shall be subjected to a soaking period of either not less than 1 h per 25 mm thickness of wall thickness or 4 h, whichever is the greater. Heating and cooling rates shall be in accordance with the following:
    - The rate of heating shall not exceed (5 500/T)°C/h or 55°C/h, whichever is the greater, where T is the wall thickness in mm.
    - Test welds shall be cooled to a temperature of 400°C at a rate not exceeding (6 875/T)°C/h or 55°C/h, whichever is the greater.

EN 1.8814 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
335 MPa
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Tensile Strength
440 — 630 MPa
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Elongation, A
22 %
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  • 369 Cross References
  • 38 Composition
  • 18 Mechanical Properties
  • 3 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • 1 Joints
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  • 33 Dimensions
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