MakeItFrom.com
Menu (ESC)

7003 Aluminum vs. 7178 Aluminum

Both 7003 aluminum and 7178 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 7003 aluminum and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 11
4.5 to 12
Fatigue Strength, MPa 130 to 150
120 to 210
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 210 to 230
140 to 380
Tensile Strength: Ultimate (UTS), MPa 350 to 390
240 to 640
Tensile Strength: Yield (Proof), MPa 300 to 310
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 380
370
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 630
630
Melting Onset (Solidus), °C 510
480
Specific Heat Capacity, J/kg-K 870
860
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
31
Electrical Conductivity: Equal Weight (Specific), % IACS 110
91

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.1
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
110 to 2220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 33 to 37
21 to 58
Strength to Weight: Bending, points 37 to 40
28 to 54
Thermal Diffusivity, mm2/s 59
47
Thermal Shock Resistance, points 15 to 17
10 to 28

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
85.4 to 89.5
Chromium (Cr), % 0 to 0.2
0.18 to 0.28
Copper (Cu), % 0 to 0.2
1.6 to 2.4
Iron (Fe), % 0 to 0.35
0 to 0.5
Magnesium (Mg), % 0.5 to 1.0
2.4 to 3.1
Manganese (Mn), % 0 to 0.3
0 to 0.3
Silicon (Si), % 0 to 0.3
0 to 0.4
Titanium (Ti), % 0 to 0.2
0 to 0.2
Zinc (Zn), % 5.0 to 6.5
6.3 to 7.3
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.15

Comparable Variants