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6013 Aluminum vs. ASTM A387 Grade 5 Steel

6013 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 5 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 6013 aluminum and the bottom bar is ASTM A387 grade 5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 3.4 to 22
20 to 21
Fatigue Strength, MPa 98 to 140
160 to 240
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
74
Shear Strength, MPa 190 to 240
310 to 380
Tensile Strength: Ultimate (UTS), MPa 310 to 410
500 to 600
Tensile Strength: Yield (Proof), MPa 170 to 350
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 160
510
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
40
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.3
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.7
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1170
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 58
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 900
140 to 320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 31 to 41
18 to 21
Strength to Weight: Bending, points 37 to 44
18 to 20
Thermal Diffusivity, mm2/s 60
11
Thermal Shock Resistance, points 14 to 18
14 to 17

Alloy Composition

Aluminum (Al), % 94.8 to 97.8
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
4.0 to 6.0
Copper (Cu), % 0.6 to 1.1
0
Iron (Fe), % 0 to 0.5
92.1 to 95.3
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.6 to 1.0
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0