ASTM A 747 CB7Cu-2 Cast steels

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

Data updates

Latest Update: 2019-03
Total number of updates: 2
Update History
2016-09

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ASTM A 747 CB7Cu-2 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.07
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
14.0 – 15.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
2.50 – 3.20
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
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

A747/A747M: 2023 / Steel Castings, Stainless, Precipitation Hardening

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ASTM A 747 CB7Cu-2 Heat Treatments

  • H900: Precipitation hardening at 480 ± 15°C (900 ± 25°F) for a minimum of 1.5h (cooling in air)
    H925: Precipitation hardening at 495 ± 15°C (925 ± 25°F) for a minimum of 1.5h (cooling in air)
    H1025: Precipitation hardening at 550 ± 15°C (1025 ± 25°F) for a minimum of 4h (cooling in air)
    H1075: Precipitation hardening at 580 ± 15°C (1075 ± 25°F) for a minimum of 4h (cooling in air)
    H1100: Precipitation hardening at 595 ± 15°C (1100 ± 25°F) for a minimum of 4h (cooling in air)
    H1150: Precipitation hardening at 620 ± 15°C (1150 ± 25°F) for a minimum of 4h (cooling in air)
    H1150M: I- Precipitation hardening at 760 ± 15°C (1400 ± 25°F) for a minimum of 2h (cooling in air); II - Precipitation hardening at 620 ± 15°C (1150 ± 25°F) for a minimum of 4h (cooling in air)
    H1150DBL: Precipitation hardening twice at 620 ± 15°C (1150 ± 25°F) for a minimum of 4h (cooling in air)
    Solution heat treatment: Heating to 1050 ± 30°C (1925 ± 50°F) holding for 1.2 min/mm (the 30 min/in.) of section, but not less than 30 min, and cooling to below 30°C (90°F)
    Precipitation hardening at 495 ± 15°C (925 ± 25°F), when Nb minimum content is specified

ASTM A 747 CB7Cu-2 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 860 MPa
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Brinell Hardness (HB)
269 — 310
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Elongation, A
≥ 5 %
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
val1
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MPa
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ASTM A 747 CB7Cu-2 International Equivalent Materials

Showing 10 of 14 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
SA-747 CB7Cu-2
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
SA-747 Type 15-5
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
A747 CB7Cu-2
STANDARD
ACI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
CB7 Cu-2
STANDARD
NMX
COUNTRY / PRODUCER
Mexico
EQUIVALENCE CATEGORY
Official
MATERIAL
5348
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
J92110
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
IC 15-5
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
15-5 PH
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
5356
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
S15500
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

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  • 14Cross References
  • 10Composition
  • 34Mechanical Properties
  • -Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 1Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 5Total Suppliers