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319.0 Aluminum vs. ASTM A204 Steel

319.0 aluminum belongs to the aluminum alloys classification, while ASTM A204 steel belongs to the iron alloys. There are 31 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 319.0 aluminum and the bottom bar is ASTM A204 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78 to 84
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.8 to 2.0
18 to 22
Fatigue Strength, MPa 76 to 80
200 to 220
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 170 to 210
330 to 360
Tensile Strength: Ultimate (UTS), MPa 190 to 240
520 to 590
Tensile Strength: Yield (Proof), MPa 110 to 180
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 480
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 540
1420 to 1430
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 110
52
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 84
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.4
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 140
20
Embodied Water, L/kg 1080
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3 to 3.9
90 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 88 to 220
220 to 290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 18 to 24
18 to 21
Strength to Weight: Bending, points 25 to 30
18 to 20
Thermal Diffusivity, mm2/s 44
14
Thermal Shock Resistance, points 8.6 to 11
15 to 17