CSN 14 340 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Czech Republic / CSN

Data updates

Latest Update: 2023-04
Total number of updates: 2
Update History
2016-09

This material has 47 properties — only a subset is shown here.

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CSN 14 340 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.9000 – 1.3000
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.2800 – 0.3800
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.3000 – 1.9000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
val1
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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

CSN 41 4340: 1976 / Chromium-Aluminum steel 14 340

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CSN 14 340 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
val1
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Shear Modulus
80 GPa
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This material has 47 properties — only a subset is shown here.

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CSN 14 340 Heat Treatments

  • Forging at 1100 to 800°C, after forging cooling slowly (ashes)
    Normalizing at 880 to 920°C, cooling in air.
    Hardening at 850 to 880°C, cooling in water.
    Tempering at 560 to 680°C, cooling in water.
    Soft annealing at 700 to 740°C, cooling in furnace.
    Annealing to lower tension at 580 to 630°C.
    Nitriding at 490 to 500°C.

CSN 14 340 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
785 — 981 MPa
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Brinell Hardness (HB)
≥ 225
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Elongation, A
≥ 15 %
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Impact Strength
val1
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kJ/m²
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Vickers Hardness (HV)
val1
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  • -Cross References
  • 7Composition
  • 29Mechanical Properties
  • 5Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 5Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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