ASTM A 890 Grade 4A Cast steels

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

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ASTM A 890 Grade 4A Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.03
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
21.0 – 23.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 1.00
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

A890/A890M: 2018 / Standard Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application

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ASTM A 890 Grade 4A Heat Treatments


  • Heat to 1120°C (2050°F) minimum for sufficient time to heat casting uniformly to temperature and water quench, or the casting may be furnace cooled to 1010°C (1850°F) minimum, hold for 15 min minimum and then water quench. A rapid cool by other means may be employed in lieu of water quench.

ASTM A 890 Grade 4A Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
≥ 620 MPa
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Elongation, A
≥ 25 %
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Yield Strength, Rp0.2
≥ 415 MPa
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ASTM A 890 Grade 4A International Equivalent Materials


Showing 15 of 69 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ACI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ACI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
ACI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 69Cross References

  • 10Composition
  • 3Mechanical Properties
  • -Physical Properties
  • 1Heat Treatment
  • 2Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • 10Joints
  • -Coatings
  • -Dimensions
  • -Tribology

  • 1Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 53Total Suppliers