SAE 7178 Aluminium Alloys

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

Data updates

Latest Update: 2023-05
Total number of updates: 8
Update History

This material has 349 properties — only a subset is shown here.

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SAE 7178 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
Remainder
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
Cr
VALUE
0.18 – 0.28
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
1.6 – 2.4
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
val1
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UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mg
VALUE
val1
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UNIT
%
CAS NUMBER
7439-95-4
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
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
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
Zn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-66-6

SAE AMS QQ A 200 13C: 1998 / Aluminum Alloy 7178, Bar, Rod, Shapes, Tube, and Wire, Extruded

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SAE 7178 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
69 — 79 GPa
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Electrical Resistivity
0.056 Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Poisson Coefficient
val1
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Thermal Conductivity
125.478 W/(m∙°C)
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This material has 349 properties — only a subset is shown here.

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SAE 7178 Heat Treatments

  • Solution heat treating at 466°C for all forms.
    Solution heat treating soaking times and maximum quench delay times is on specifications.
    For all forms, aging treatment is mandatory: Starting temper is AQ or W, final temper is T62 (sometimes used to designate final tempers), aging at 121°C for 23-25h. For sheets, plates, aging treatment is preferred: Starting temper is AQ or W, final temper is T76 (sometimes used to designate final tempers), 1st step: aging at 121°C for 23-25h, 2nd step: aging at 163°C for 16-18h. For sheets, plates, aging treatment is alternate: Starting temper is AQ or W, final temper is T76 (sometimes used to designate final tempers), 1st step: aging at 121°C for 4-6h, 2nd step: aging at 163°C for 16-18h. For extruded bars and shapes, aging treatment is preferred: Starting temper is AQ or W, final temper is T76 (sometimes used to designate final tempers), 1st step: aging at 121°C for 23-25h, 2nd step: aging at 160°C for 18-20h. For extruded bars and shapes, aging treatment is alternate: Starting temper is AQ or W, final temper is T76 (sometimes used to designate final tempers), 1st step: aging at 121°C for 4-6h, 2nd step: aging at 160°C for 18-20h.
    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 treating temperature (for sheet): 460-499°C (860- 930°F) , followed by an air cool and quenched.

SAE 7178 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 276 MPa
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Elongation, A
≥ 3 %
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Yield Strength, Rp0.2
≥ 145 MPa
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SAE 7178 International Equivalent Materials

Showing 15 of 67 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
A97178
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
7178
STANDARD
AA
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
Alclad 7178
STANDARD
AA
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SB-241 7178
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7178
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-AlZn7MgCu
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
AlZn7MgCu
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
EN AW-7178
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
B 241 7178
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
B 221 7178
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
B 209 7178
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
B 316 7178
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
B 744 7178
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
7178
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 7178P
STANDARD
JIS
COUNTRY / PRODUCER
Japan
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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  • 67Cross References
  • 44Composition
  • 148Mechanical Properties
  • 8Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • 16Stress-Strain
  • -Formability
  • 40Fatigue
  • 20Fracture
  • 1Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 3Total Suppliers