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3103 Aluminum vs. ASTM A210 Steel

3103 aluminum belongs to the aluminum alloys classification, while ASTM A210 steel belongs to the iron 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 3103 aluminum and the bottom bar is ASTM A210 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 27 to 62
140 to 160
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.1 to 28
34
Fatigue Strength, MPa 38 to 83
230 to 250
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 68 to 130
320 to 360
Tensile Strength: Ultimate (UTS), MPa 100 to 220
470 to 540
Tensile Strength: Yield (Proof), MPa 39 to 200
290 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 190
400
Melting Completion (Liquidus), °C 660
1460 to 1470
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
52 to 53
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.0 to 8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1180
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4 to 24
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 280
230 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 10 to 22
17 to 19
Strength to Weight: Bending, points 18 to 30
17 to 19
Thermal Diffusivity, mm2/s 64
14
Thermal Shock Resistance, points 4.6 to 9.9
15 to 17