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6070 Aluminum vs. ASTM A356 Grade 9

6070 aluminum belongs to the aluminum alloys classification, while ASTM A356 grade 9 belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6070 aluminum and the bottom bar is ASTM A356 grade 9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.6 to 8.6
17
Fatigue Strength, MPa 95 to 130
310
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 370 to 380
670
Tensile Strength: Yield (Proof), MPa 350
460

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 160
440
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 570
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
41
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.6
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
2.4
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1170
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 32
100
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 900
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 38
24
Strength to Weight: Bending, points 42 to 43
22
Thermal Diffusivity, mm2/s 65
11
Thermal Shock Resistance, points 16 to 17
19

Alloy Composition

Aluminum (Al), % 94.6 to 98
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.1
1.0 to 1.5
Copper (Cu), % 0.15 to 0.4
0
Iron (Fe), % 0 to 0.5
95.2 to 97.2
Magnesium (Mg), % 0.5 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 1.0 to 1.7
0.2 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0.2 to 0.35
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0