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5182 Aluminum vs. ASTM A387 Grade 22 Steel

5182 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 22 steel belongs to the iron alloys. There are 30 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 5182 aluminum and the bottom bar is ASTM A387 grade 22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 12
21
Fatigue Strength, MPa 100 to 130
160 to 240
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
74
Shear Strength, MPa 170 to 240
300 to 380
Tensile Strength: Ultimate (UTS), MPa 280 to 420
480 to 600
Tensile Strength: Yield (Proof), MPa 130 to 360
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 180
460
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 590
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
40
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 94
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.9
1.7
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1180
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
140 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 29 to 44
17 to 21
Strength to Weight: Bending, points 36 to 47
17 to 20
Thermal Diffusivity, mm2/s 53
11
Thermal Shock Resistance, points 12 to 19
14 to 17

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0 to 0.1
2.0 to 2.5
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
95.1 to 96.8
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0

Comparable Variants