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7049 Aluminum vs. A357.0 Aluminum

Both 7049 aluminum and A357.0 aluminum are aluminum alloys. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is 7049 aluminum and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
100
Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 6.2 to 7.0
3.7
Fatigue Strength, MPa 160 to 170
100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 300 to 310
240
Tensile Strength: Ultimate (UTS), MPa 510 to 530
350
Tensile Strength: Yield (Proof), MPa 420 to 450
270

Thermal Properties

Latent Heat of Fusion, J/g 370
500
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 480
560
Specific Heat Capacity, J/kg-K 860
900
Thermal Conductivity, W/m-K 130
160
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 3.1
2.6
Embodied Carbon, kg CO2/kg material 8.1
8.2
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1110
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
12
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
53
Strength to Weight: Axial, points 46 to 47
38
Strength to Weight: Bending, points 46 to 47
43
Thermal Diffusivity, mm2/s 51
68
Thermal Shock Resistance, points 22 to 23
17

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0 to 0.2
Iron (Fe), % 0 to 0.35
0 to 0.2
Magnesium (Mg), % 2.0 to 2.9
0.4 to 0.7
Manganese (Mn), % 0 to 0.2
0 to 0.1
Silicon (Si), % 0 to 0.25
6.5 to 7.5
Titanium (Ti), % 0 to 0.1
0.040 to 0.2
Zinc (Zn), % 7.2 to 8.2
0 to 0.1
Residuals, % 0
0 to 0.15