AFCEN X5 CrNiCuNb 17-4 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: France / AFCEN

Data updates

Latest Update: 2015-10
Total number of updates: 1
Update History

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

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AFCEN X5 CrNiCuNb 17-4 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.070
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
15.5 – 17.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
3.00 – 5.00
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
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

M 3206: RCC-M II: 2024 / Martensitic stainless steel rolled or forged bars for use in manufacturing class 2 and 3 control valve blanks or cages

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AFCEN X5 CrNiCuNb 17-4 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Density
7.61 — 8.1 kg/dm³
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Poisson Coefficient
val1
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Service Temperature
≤ 250 °C
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This material has 20 properties — only a subset is shown here.

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AFCEN X5 CrNiCuNb 17-4 Heat Treatments

  • Bars shall be delivered in the as-treated condition.
    Heat treatment for mechanical properties, shall consist of the following operations:
    - austenitizing at a temperature between 1020°C and 1060°C, followed by cooling in air, oil, or water + polymer down to a temperature lower or equal to 30°C,
    - hardening treatment at a temperature of 480°C ± 10°C for at least 1 hour, followed by air cooling.

AFCEN X5 CrNiCuNb 17-4 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
1300 — 1650 MPa
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Elongation, A
≥ 9 %
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
≥ 1165 MPa
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  • 2Cross References
  • 9Composition
  • 4Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
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