7178 (AlZn7MgCu, A97178) Aluminum

Wrought Aluminum Alloys

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density3.1g/cm³

Elastic Modulus71GPa

Tensile Strength240MPa

Yield Strength120MPa

Brinell HardnessUnknown

Maximum Service Temperature180°C

Weight Calculator

Chemical Composition

0.18 to 0.28%

0 to 0.3%

0 to 0.4%

1.6 to 2.4%

0 to 0.2%

85.4 to 89.5%

2.4 to 3.1%

RES.

Residuals res. | | 0 to 0.15%

RESIDUALS RES.

0 to 0.15%

6.3 to 7.3%

0 to 0.5%

Mechanical

Elastic (Young's, Tensile) Modulus

71 GPa

Elongation at Break

12 %

Fatigue Strength

120 MPa

Poisson's Ratio

0.32

Shear Modulus

27 GPa

Shear Strength

140 MPa

Tensile Strength: Ultimate (UTS)

240 MPa

Tensile Strength: Yield (Proof)

120 MPa

Physical

Density

3.1 g/cm 3

Thermal

Latent Heat of Fusion

370 J/g

Maximum Temperature: Mechanical

180 °C

Melting Completion (Liquidus)

630 °C

Melting Onset (Solidus)

480 °C

Specific Heat Capacity

860 J/kg-K

Thermal Conductivity

130 W/m-K

Thermal Diffusivity

47 mm 2 /s

Thermal Expansion

23 µm/m-K

Thermal Shock Resistance

10 points

Electrical

Electrical Conductivity: Equal Volume

31 % IACS

Electrical Conductivity: Equal Weight (Specific)

91 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

24 MJ/m 3

Resilience: Unit (Modulus of Resilience)

110 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

45 points

Strength to Weight: Axial

21 points

Strength to Weight: Bending

28 points

Environmental

Base Metal Price

10 % relative

Embodied Carbon

8.2 kg CO 2 /kg material

Embodied Energy

150 MJ/kg

Embodied Energy

150 MJ/kg 62 x 10 3 BTU/lb

Embodied Water

1110 L/kg

Embodied Water

1110 L/kg 130 gal/lb

Registered Designations & Aliases

7178 (AlZn7MgCu, A97178) AluminumA97178AlZn7MgCuEN AW-7178

Standards

ASTM B209 ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B221 ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

ASTM B221 ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003 ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate Aluminum Standards and Data, Aluminum Association Inc., 2013

EN 573-3 EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products

ISO 6361-2 ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties