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850.0 Aluminum vs. ASTM A209 Steel

850.0 aluminum belongs to the aluminum alloys classification, while ASTM A209 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 850.0 aluminum and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 7.9
34
Fatigue Strength, MPa 59
180 to 200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 100
280 to 310
Tensile Strength: Ultimate (UTS), MPa 140
420 to 460
Tensile Strength: Yield (Proof), MPa 76
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 370
1420 to 1430
Specific Heat Capacity, J/kg-K 850
470
Thermal Conductivity, W/m-K 180
50
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.4
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.5
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 1160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 42
130 to 170
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 44
24
Strength to Weight: Axial, points 12
15 to 16
Strength to Weight: Bending, points 19
16 to 17
Thermal Diffusivity, mm2/s 69
13
Thermal Shock Resistance, points 6.1
12 to 14