SAE 7249 Aluminium Alloys

Material group: Nonferrous Alloys / Aluminium Alloys

Country / Standard: United States / SAE

Indicative price:

Data updates

Latest Update: 2024-10

Total number of updates: 10

Update History

2023-05 2021-02 2019-07 2019-04 2018-01 2017-11 2017-08 2017-04 2016-12

This material has 217 properties — only a subset is shown here.

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SAE 7249 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

Remainder

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

0.12 – 0.18

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

1.3 – 1.9

UNIT

CAS NUMBER

7440-50-8

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-89-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-95-4

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

Other each

VALUE

val1

UNIT

CAS NUMBER

CRITERIA

Other total

VALUE

val1

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-32-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-66-6

SAE AMS 4334B: 1995 / Aluminum Alloy, Forgings 7.8Zn - 2.2Mg - 1.6Cu - 0.15Cr (7249-T74 and -T7452)

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SAE 7249 Physical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C

PROPERTY / VALUE

Compression Modulus

72 — 74 GPa

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Modulus of Elasticity

69 — 79 GPa

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Density

val1 kg/dm³

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Electrical Conductivity

val1 S/m

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Thermal Conductivity

val1 W/(m∙°C)

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Electrical Resistivity

≤ 0.0466 Ω∙mm²/m

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Poisson Coefficient

val1

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Shear Modulus

val1 GPa

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This material has 217 properties — only a subset is shown here.

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SAE 7249 Heat Treatments

Solution Heat Treatment: Heat to 466 to 477°C (870 to 890°F), hold at heat for a time commensurate with product thickness and rapidly cool in a suitable quenching medium.
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.
Aging treatment is mandatory. For forgings: Starting temper is W, final temper is T73 (sometimes used to designate final tempers), 1st step: aging at 121°C for 10-12h, 2nd step: aging at 162°C for 6.5-7.5h. For extrusions: Starting temper is W, final temper is T76 (sometimes used to designate final tempers), 1st step: aging at 121°C for 4-28h, 2nd step: aging at 162°C for 4-10.
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.

SAE 7249 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Tensile Strength

≥ 455 MPa

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Brinell Hardness (HB)

≥ 135

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Compression Yield Strength

val1 MPa

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Elongation, A

≥ 5 %

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Yield Strength, Rp0.2

val1 MPa

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SAE 7249 International Equivalent Materials

Showing 3 of 3 results.

MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

A97249

STANDARD

UNS

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Official

MATERIAL

7249

STANDARD

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Composition 100%

MATERIAL

7249

STANDARD

ISO

COUNTRY / PRODUCER

International

EQUIVALENCE CATEGORY

Composition 100%

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

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3Cross References

22Composition
131Mechanical Properties
15Physical Properties
4Heat Treatment
2Metallography
-Machinability

40Stress-Strain
-Formability
-Fatigue
-Fracture
-Creep

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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