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7010 Aluminum vs. ASTM A229 Spring Steel

7010 aluminum belongs to the aluminum alloys classification, while ASTM A229 spring steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 7010 aluminum and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.9 to 6.8
14
Fatigue Strength, MPa 160 to 190
710 to 790
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 300 to 340
1020 to 1140
Tensile Strength: Ultimate (UTS), MPa 520 to 590
1690 to 1890
Tensile Strength: Yield (Proof), MPa 410 to 540
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 480
1410
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 150
50
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
3260 to 4080
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 47 to 54
60 to 67
Strength to Weight: Bending, points 47 to 52
40 to 43
Thermal Diffusivity, mm2/s 58
14
Thermal Shock Resistance, points 22 to 26
54 to 60

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0.55 to 0.85
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 0 to 0.15
97.5 to 99
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0.3 to 1.2
Nickel (Ni), % 0 to 0.050
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0.15 to 0.35
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0 to 0.15
0

Comparable Variants