MakeItFrom.com
Menu (ESC)

7003 Aluminum vs. ASTM A572 Steel

7003 aluminum belongs to the aluminum alloys classification, while ASTM A572 steel belongs to the iron alloys. There are 30 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 7003 aluminum and the bottom bar is ASTM A572 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 11
18 to 25
Fatigue Strength, MPa 130 to 150
240 to 340
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 210 to 230
300 to 380
Tensile Strength: Ultimate (UTS), MPa 350 to 390
470 to 620
Tensile Strength: Yield (Proof), MPa 300 to 310
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 510
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 150
51
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2 to 8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.0
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1140
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
290 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 33 to 37
17 to 22
Strength to Weight: Bending, points 37 to 40
17 to 21
Thermal Diffusivity, mm2/s 59
14
Thermal Shock Resistance, points 15 to 17
14 to 18