AFCEN 20 MND 5 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: France / AFCEN

Data updates

Latest Update: 2024-02
Total number of updates: 6
Update History
2024-01 2022-05 2022-02 2018-07 2018-03

This material has 347 properties — only a subset is shown here.

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AFCEN 20 MND 5 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.04
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.22
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.25
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
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
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

M 2115 Bis: RCC-M II: 2024 / 20 MND 5 Manganese-nickel-molybdenum alloy steel forgings for PWR steam generator tube plates

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AFCEN 20 MND 5 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Thermal Conductivity
val1
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W/(m∙°C)
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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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This material has 347 properties — only a subset is shown here.

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AFCEN 20 MND 5 Heat Treatments

  • Austenitizing at a temperature between 850°C and 925°C, quenching by immersion in water or water spraying, tempering at a temperature selected so as to obtain the required properties, followed by still air cooling. Holding temperature for tempering shall be between 630°C and 660°C.
  • Austenitizing at a temperature between 850°C and 925°C, quenching by immersion in water, tempering at a temperature selected so as to obtain the required properties, followed by still air cooling. Holding temperature for tempering shall be between 630°C and 660°C. Holding time shall be selected depending on plate thickness, on the minimum basis of half an hour for every 25 mm in thickness.

AFCEN 20 MND 5 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
620 — 795 MPa
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Elongation, A
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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  • -Cross References
  • 77Composition
  • 213Mechanical Properties
  • 41Physical Properties
  • 7Heat Treatment
  • -Metallography
  • -Machinability
  • 9Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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