771.0 (71A, A07710) Cast Aluminum

Cast Aluminum Alloys

Material conditionT5

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density3g/cm³

Elastic Modulus70GPa

Tensile Strength320MPa

Yield Strength300MPa

Brinell Hardness100HB

Maximum Service Temperature180°C

Weight Calculator

Chemical Composition

0.060 to 0.2%

0 to 0.1%

0 to 0.15%

0 to 0.1%

0.1 to 0.2%

90.5 to 92.5%

0.8 to 1.0%

RES.

Residuals res. | | 0 to 0.15%

RESIDUALS RES.

0 to 0.15%

6.5 to 7.5%

0 to 0.15%

Mechanical

Elastic (Young's, Tensile) Modulus

70 GPa

Elongation at Break

1.9 %

Fatigue Strength

120 MPa

Poisson's Ratio

0.32

Shear Modulus

26 GPa

Tensile Strength: Ultimate (UTS)

320 MPa

Tensile Strength: Yield (Proof)

300 MPa

Hardness

Brinell Hardness

100

Physical

Density

3.0 g/cm 3

Thermal

Latent Heat of Fusion

380 J/g

Maximum Temperature: Mechanical

180 °C

Melting Completion (Liquidus)

630 °C

Melting Onset (Solidus)

620 °C

Solidification (Pattern Maker's) Shrinkage

1.6 %

Specific Heat Capacity

870 J/kg-K

Thermal Conductivity

140 W/m-K

Thermal Diffusivity

54 mm 2 /s

Thermal Expansion

24 µm/m-K

Thermal Shock Resistance

14 points

Electrical

Electrical Conductivity: Equal Volume

27 % IACS

Electrical Conductivity: Equal Weight (Specific)

82 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

5.9 MJ/m 3

Resilience: Unit (Modulus of Resilience)

640 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

46 points

Strength to Weight: Axial

30 points

Strength to Weight: Bending

35 points

Environmental

Base Metal Price

9.5 % relative

Embodied Carbon

8.0 kg CO 2 /kg material

Embodied Energy

150 MJ/kg

Embodied Energy

150 MJ/kg 64 x 10 3 BTU/lb

Embodied Water

1130 L/kg

Embodied Water

1130 L/kg 140 gal/lb

Registered Designations & Aliases

71A771.0 (71A, A07710) Cast AluminumA07710

Standards

ASTM B26 ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings

ASTM B618 ASTM B618: Standard Specification for Aluminum-Alloy Investment Castings

ASTM B618 ASTM B618: Standard Specification for Aluminum-Alloy Investment Castings ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003