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EN AC-44200 Aluminum vs. ASTM A302 Alloy Steel

EN AC-44200 aluminum belongs to the aluminum alloys classification, while ASTM A302 alloy 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-44200 aluminum and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 6.2
20 to 23
Fatigue Strength, MPa 63
250 to 280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
590 to 620
Tensile Strength: Yield (Proof), MPa 86
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 130
39 to 51
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.2 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4 to 3.0
Density, g/cm3 2.5
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5 to 1.6
Embodied Energy, MJ/kg 140
20 to 21
Embodied Water, L/kg 1050
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 51
330 to 410
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 20
21 to 22
Strength to Weight: Bending, points 28
20 to 21
Thermal Diffusivity, mm2/s 59
10 to 14
Thermal Shock Resistance, points 8.4
17 to 18