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5657 Aluminum vs. ASTM A414 Steel

5657 aluminum belongs to the aluminum alloys classification, while ASTM A414 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 5657 aluminum and the bottom bar is ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 40 to 50
110 to 180
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 6.6 to 15
15 to 26
Fatigue Strength, MPa 74 to 88
140 to 260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 92 to 110
230 to 370
Tensile Strength: Ultimate (UTS), MPa 150 to 200
360 to 590
Tensile Strength: Yield (Proof), MPa 140 to 170
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 210
49 to 50
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
7.2 to 7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 180
8.3 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 2.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 8.4
1.5 to 1.6
Embodied Energy, MJ/kg 160
20 to 22
Embodied Water, L/kg 1200
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.7 to 27
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
100 to 330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 15 to 20
13 to 21
Strength to Weight: Bending, points 23 to 28
14 to 20
Thermal Diffusivity, mm2/s 84
13
Thermal Shock Resistance, points 6.7 to 8.6
11 to 17