CSN 16 523 Structural and constructional steels

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

Data updates

Latest Update: 2018-06
Total number of updates: 3
Update History
2017-03 2014-06

This material has 20 properties — only a subset is shown here.

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CSN 16 523 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.1200 – 0.1900
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.2000 – 1.7500
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.3000 – 0.6000
UNIT
%
CAS NUMBER
7439-96-5
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

CSN 41 6523: 1987 / Nickel-Chromium steel 16 523

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CSN 16 523 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 20 properties — only a subset is shown here.

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CSN 16 523 Heat Treatments

  • Forging at 1100 to 850°C, forging cooling slowly;
    Soft annealing at 610 to 630°C, cooling in furnace;
    Case-hardening in powder at 860 to 880°C;
    Case-hardening in gas at 890 to 910°C;
    Case-hardening in bath at 860 to 890°C;
    First hardening at 860 to 890°C, cooling in oil or oil, for thick parts water;
    Intermediate annealing at 620 to 640°C. Intermediate annealing is not always necessary if the parts are not settled. In the case of annealing in a box furnace it is imperative to get rid of cemented components in the bath of cyanide, in salt bath or in boxes in a box furnace to cooling slowly;
    Second hardening at 770 at 880°C, cooling in oil;
    Simple hardening at 790 to 810°C, cooling in oil;.
    Tempering at 160 to 200°C, about an hour.

CSN 16 523 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 1230 MPa
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Brinell Hardness (HB)
≤ 268
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Elongation, A
≥ 10 %
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Impact Strength
val1
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kJ/m²
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
val1
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MPa
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Reduction of Area
val1
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%
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  • -Cross References
  • 7Composition
  • 8Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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