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ASTM A204 Steel vs. 359.0 Aluminum

ASTM A204 steel belongs to the iron alloys classification, while 359.0 aluminum belongs to the aluminum alloys. 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 A204 steel and the bottom bar is 359.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
90 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 18 to 22
3.8 to 4.9
Fatigue Strength, MPa 200 to 220
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 330 to 360
220 to 230
Tensile Strength: Ultimate (UTS), MPa 520 to 590
340 to 350
Tensile Strength: Yield (Proof), MPa 290 to 330
250 to 280

Thermal Properties

Latent Heat of Fusion, J/g 250
530
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1470
600
Melting Onset (Solidus), °C 1420 to 1430
570
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 52
140
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 1.5
8.0
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 47
1090

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
12 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
450 to 540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 18 to 21
37 to 38
Strength to Weight: Bending, points 18 to 20
42 to 43
Thermal Diffusivity, mm2/s 14
59
Thermal Shock Resistance, points 15 to 17
16 to 17