ASTM A 447 Type II Cast steels

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

Data updates

Latest Update: 2021-09
Total number of updates: 1
Update History

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ASTM A 447 Type II Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.20 – 0.45
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
23.00 – 28.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 2.50
UNIT
%
CAS NUMBER
7439-96-5
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

A447/A447M: 2011 / Standard Specification for Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service

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ASTM A 447 Type II Heat Treatments

  • Heated for 24 h at 760 ± 14°C (1400 ± 25°F), cooling at least down to 205°C (400°F) at rates not exceeding 110°C (200°F)/hour.
    Magnetic properties of material were obtained after heating specimen in air to 1095 ± 14°C (2000 ± 25°F), holding within this range for 24 h, and then quenching in water. After quenching, all scale and superficial oxidized metal shall be removed in order to avoid errors that might arise from the presence of magnetizable oxides formed during heating.

ASTM A 447 Type II Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 550 MPa
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Elongation, A
≥ 4 %
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ASTM A 447 Type II International Equivalent Materials

Showing 2 of 3 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
A 447 Type I
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
J93303
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

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  • 3Cross References
  • 8Composition
  • 4Mechanical Properties
  • 1Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 3Total Suppliers