SAE Ti-7Al-4Mo Titanium Alloys

Material group: Nonferrous Alloys / Titanium Alloys
Country / Standard: United States / SAE

Data updates

Latest Update: 2020-10
Total number of updates: 4
Update History
2020-09 2015-11 2014-07

This material has 4448 properties — only a subset is shown here.

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SAE Ti-7Al-4Mo Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
6.50 – 7.30
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.10
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Fe
VALUE
≤ 0.30
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
H
VALUE
val1
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UNIT
%
CAS NUMBER
1333-74-0
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
O
VALUE
val1
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UNIT
%
CAS NUMBER
7782-44-7; 17778-80-2
CRITERIA
Other each
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Other total
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
Y
VALUE
val1
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UNIT
%
CAS NUMBER
7440-65-5

SAE AMS 4970M: 2020 / Titanium Alloy Bars, Wire, and Forgings 7Al - 4Mo Solution and Precipitation Heat Treated

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SAE Ti-7Al-4Mo Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
80 — 130 GPa
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Density
val1
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kg/dm³
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This material has 4448 properties — only a subset is shown here.

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SAE Ti-7Al-4Mo Heat Treatments


  • Bars and forgings shall be annealed as follows: heat to a temperature within the range 704-788°C (1300-1450°F), hold at the selected temperature within ± 14°C (± 25°F) for a time commensurate with section thickness and the heating equipment and procedure used, and cool at a rate equivalent to an air cool or faster.
  • Solution heat treatment: Heating to a temperature within the range 899 - 968°C (1650 - 1775°F), holding at the selected temperature within ± 14°C (± 25°F) for time commensurate with size and with the heating equipment and procedure used, and quenching in water and precipitation heat treated by heating to a temperature within the range 510 - 649°C (950 - 1200°F), holding at the selected temperature within ± 8°C (± 15°F) for a time commensurate with the thickness and with the heating equipment and procedure used, and cooling at a rate equivalent to air cooling.
    Stress relieving: After coining, cold-sizing, or straightening product heat treated stress relieve the product at a temperature not higher than 607°C (1125°F) provided that mechanical properties are met.

SAE Ti-7Al-4Mo Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
≥ 965 MPa
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Elongation, A
≥ 8 %
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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SAE Ti-7Al-4Mo International Equivalent Materials


Showing 2 of 2 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
MIL
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official

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  • 2Cross References

  • 41Composition
  • 52Mechanical Properties
  • 15Physical Properties
  • 2Heat Treatment
  • -Metallography
  • 1Machinability

  • 13Stress-Strain
  • -Formability
  • 1Fatigue
  • 2Fracture
  • 3Creep

  • -Joints
  • -Coatings
  • 29Dimensions
  • -Tribology

  • 4283Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 4Total Suppliers