ASTM A 990 CN3MCu Cast steels

Material group: Ferrous Alloys / Cast steels
Country / Standard: United States / ASTM

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This material has 31 properties — only a subset is shown here.

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ASTM A 990 CN3MCu Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.030
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
19.0 – 22.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
3.0 – 3.5
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
val1
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UNIT
%
CAS NUMBER
7439-89-6
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

A990/A990M: 2023 / Standard Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service

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ASTM A 990 CN3MCu Heat Treatments

  • Solution heat treated: Heat to 1120°C (2050°F) min. for a min. of 1 h at temperature/25 mm of thickness. Quench in water or rapid cool by other means.

ASTM A 990 CN3MCu Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 425 MPa
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Elongation, A
≥ 35 %
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Yield Strength, Rp0.2
≥ 170 MPa
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  • 3Cross References
  • 10Composition
  • 3Mechanical Properties
  • -Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 14Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers