MakeItFrom.com
Menu (ESC)

ASTM A209 Steel vs. 2018 Aluminum

ASTM A209 steel belongs to the iron alloys classification, while 2018 aluminum belongs to the aluminum 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 ASTM A209 steel and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 150
120
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 34
9.6
Fatigue Strength, MPa 180 to 200
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 280 to 310
270
Tensile Strength: Ultimate (UTS), MPa 420 to 460
420
Tensile Strength: Yield (Proof), MPa 220 to 250
310

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 410
220
Melting Completion (Liquidus), °C 1470
640
Melting Onset (Solidus), °C 1420 to 1430
510
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 50
150
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
11
Density, g/cm3 7.9
3.1
Embodied Carbon, kg CO2/kg material 1.5
8.1
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 47
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
37
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 170
670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 15 to 16
38
Strength to Weight: Bending, points 16 to 17
41
Thermal Diffusivity, mm2/s 13
57
Thermal Shock Resistance, points 12 to 14
19