SAE 7149 Aluminium Alloys

Material group: Nonferrous Alloys / Aluminium Alloys
Country / Standard: United States / SAE
Indicative price:

Data updates

Latest Update: 2025-02
Total number of updates: 9
Update History

This material has 316 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

SAE 7149 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
Remainder
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
Cr
VALUE
0.10 – 0.22
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
1.2 – 1.9
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mg
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-95-4
CRITERIA
Mn
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Other each
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
CRITERIA
Other total
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
CRITERIA
Si
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Ti
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
Zn
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-66-6

SAE AMS 4320C: 2005 / Aluminum Alloy Forgings 7.7Zn - 2.5Mg - 1.5Cu - 0.16Cr (7149-T73) Solution and Precipitation Heat Treated

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

SAE 7149 Physical Properties

Temperature

PROPERTY / VALUE
Compression Modulus
73 — 76 GPa
Unlock full details
Full data available with free access View Complete Material Data
Modulus of Elasticity
69 — 79 GPa
Unlock full details
Full data available with free access View Complete Material Data
Density
val1
Full data available with free access View Complete Material Data
kg/dm³
Unlock full details
Full data available with free access View Complete Material Data
Thermal Conductivity
val1
Full data available with free access View Complete Material Data
W/(m∙°C)
Unlock full details
Full data available with free access View Complete Material Data
Electrical Resistivity
≤ 0.0431 Ω∙mm²/m
Unlock full details
Full data available with free access View Complete Material Data
Electrical Conductivity
val1
Full data available with free access View Complete Material Data
S/m
Unlock full details
Full data available with free access View Complete Material Data
Poisson Coefficient
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data
Shear Modulus
val1
Full data available with free access View Complete Material Data
GPa
Unlock full details
Full data available with free access View Complete Material Data

This material has 316 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

SAE 7149 Heat Treatments

  • Solution heat treating at 468°C for all forms (the aging treatment for 7049 alloy shall not be initiated until at least 48h at room temperature have elapsed after quenching),( to avoid stress corrosion cracking of thick 7049 parts, delay between quenching and start of aging should not exceed 72h).
    Solution heat treating soaking times and maximum quench delay times is on specifications.
    Limits for quenching in polymer solutions for forgings: for thickness 25.40 mm polymer concentration is 18-22% max (±2); for thickness 50.80 mm polymer concentration is 11-15% max (±2); for thickness 76.20 mm polymer concentration is 8-12% max (±2).
    Aging treatment is mandatory. For extruded bars and shapes: Starting temper is W, final temper is T73 (sometimes used to designate final tempers), 1st step: aging at 121°C for 23-25h, 2nd step: aging at 166°C for 21-22h (14-15h if thicker than 51mm); Starting temper is W, final temper is T76 (sometimes used to designate final tempers), 1st step: aging at 121°C for 23-25h, 2nd step: aging at 166°C for 14-15h. For forgings: Starting temper is W, final temper is T73 (sometimes used to designate final tempers), 1st step: aging at 121°C for 23-25h, 2nd step: aging at 166°C for 13-14h. Full anneal: At 399-427°C, soaking time is minimum 2h (soak times listed are for up to 13 mm maximum thickness. Add 0.5 hour for each additional 13 mm of product or nested stack thickness or fraction thereof over 13 mm), cooling in furnace (furnace cool at 28°C degrees per hour maximum, to 232°C, hold at 232°C for 6 hours, furnace or air cool to room temperature). Stress relief: At 333-349°C, soaking time is minimum 2h (soak times listed are for up to 13 mm maximum thickness. Add 0.5 hour for each additional 13 mm of product or nested stack thickness or fraction thereof over 13 mm), cooling in air.
  • Solution Heat Treatment: Heat to 468 ± 6°C (875 ± 10°F), hold at heat for not less than 60 minutes, and quench in water at 54 to 66°C (130 to 150°F).
    Holding Period: Hold at room temperature for not less than 48 hours.
    Precipitation Heat Treatment: Heat to 121 ± 6°C (250 ± 10°F), hold at heat for 24 hours ± 1, increase temperature to 166 ± 3°C (330 ± 5°F), hold at heat for 14 hours ± 0.5, and cool in air. For section thicknesses over 102 mm, the second step may be reduced to 163 ± 3°C (325 ± 5°F).

SAE 7149 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 455 MPa
Unlock full details
Full data available with free access View Complete Material Data
Brinell Hardness (HB)
119 — 135
Unlock full details
Full data available with free access View Complete Material Data
Compression Yield Strength
val1
Full data available with free access View Complete Material Data
MPa
Unlock full details
Full data available with free access View Complete Material Data
Elongation, A
≥ 2 %
Unlock full details
Full data available with free access View Complete Material Data
Yield Strength, Rp0.2
val1
Full data available with free access View Complete Material Data
MPa
Unlock full details
Full data available with free access View Complete Material Data

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

SAE 7149 International Equivalent Materials

Showing 15 of 44 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
A97149
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
7149
STANDARD
AA
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn8MgCu(A)
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
ASRO
COUNTRY / PRODUCER
Romania
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn8MgCu(A)
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn8MgCu(A)
STANDARD
ASRO
COUNTRY / PRODUCER
Romania
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn8MgCu(A)
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn8MgCu(A)
STANDARD
BDS
COUNTRY / PRODUCER
Bulgaria
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn8MgCu(A)
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7149
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Composition 100%

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

Need the full list of 44 international equivalents?

See all 44 equivalent grades with detailed mapping by standard, producer and equivalence category.

View All Equivalents ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book A Demo

  • 44Cross References
  • 22Composition
  • 159Mechanical Properties
  • 29Physical Properties
  • 3Heat Treatment
  • -Metallography
  • -Machinability
  • 50Stress-Strain
  • -Formability
  • 6Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • 2Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers