AFNOR NF Z 3 CNDU 26.05 M Cast steels

Material group: Ferrous Alloys / Cast steels
Country / Standard: France / AFNOR NF

Data updates

Latest Update: 2021-01
Total number of updates: 2
Update History
2020-12

This material has 33 properties — only a subset is shown here.

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AFNOR NF Z 3 CNDU 26.05 M Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.04
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
24.5 – 26.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
2.75 – 3.25
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
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

NF A 32-060: 1988 / Foundry products - Cast steel and nickel alloy castings for pumps, valves and fittings (enclosures and internal components)

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AFNOR NF Z 3 CNDU 26.05 M Heat Treatments

  • Hyperquenched (Hy): at 1120°C minimum, after dissolving at high temperature, it is important to allow the parts to homogenize between 1010 and 1060°C before cooling. Possibility of age hardening by treatment between 480°C and 510°C after quenching, making it possible to achieve a hardness of 280 to 320 HBS, but to the detriment of the corrosion resistance, which is optimal after hardening.

AFNOR NF Z 3 CNDU 26.05 M Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 700 MPa
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Brinell Hardness (HB)
210 — 260
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Elongation, A
≥ 15 %
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Impact Strength
val1
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kJ/m²
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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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  • 15Cross References
  • 10Composition
  • 7Mechanical Properties
  • -Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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