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EN AC-51500 Aluminum vs. ASTM A372 Grade C Steel

EN AC-51500 aluminum belongs to the aluminum alloys classification, while ASTM A372 grade C 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 EN AC-51500 aluminum and the bottom bar is ASTM A372 grade C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
210
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 5.6
17
Fatigue Strength, MPa 120
290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 280
710
Tensile Strength: Yield (Proof), MPa 160
430

Thermal Properties

Latent Heat of Fusion, J/g 430
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 120
51
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 88
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.0
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 36
23
Thermal Diffusivity, mm2/s 49
14
Thermal Shock Resistance, points 13
22

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
0
Carbon (C), % 0
0 to 0.48
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.25
97.5 to 99.85
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0 to 1.7
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 1.8 to 2.6
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.15
0