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ASTM A203 Steel vs. EN AC-46300 Aluminum

ASTM A203 steel belongs to the iron alloys classification, while EN AC-46300 aluminum belongs to the aluminum 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 ASTM A203 steel and the bottom bar is EN AC-46300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
91
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 22 to 26
1.1
Fatigue Strength, MPa 210 to 280
79
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 520 to 590
200
Tensile Strength: Yield (Proof), MPa 290 to 390
110

Thermal Properties

Latent Heat of Fusion, J/g 250
490
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
530
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 52
120
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5 to 8.7
84

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2 to 4.0
10
Density, g/cm3 7.9
2.9
Embodied Carbon, kg CO2/kg material 1.6 to 1.7
7.7
Embodied Energy, MJ/kg 21 to 23
140
Embodied Water, L/kg 50 to 52
1060

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
1.9
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 410
89
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 18 to 21
20
Strength to Weight: Bending, points 18 to 20
27
Thermal Diffusivity, mm2/s 14
47
Thermal Shock Resistance, points 15 to 17
9.1