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5056 Aluminum vs. Grade 250 Maraging Steel

5056 aluminum belongs to the aluminum alloys classification, while grade 250 maraging steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 5056 aluminum and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 4.9 to 31
7.3 to 17
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 25
75
Shear Strength, MPa 170 to 240
600 to 1060
Tensile Strength: Ultimate (UTS), MPa 290 to 460
970 to 1800
Tensile Strength: Yield (Proof), MPa 150 to 410
660 to 1740

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 570
1430
Specific Heat Capacity, J/kg-K 910
450
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
32
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 9.0
4.9
Embodied Energy, MJ/kg 150
65
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 140
130 to 150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
23
Strength to Weight: Axial, points 30 to 48
33 to 61
Strength to Weight: Bending, points 36 to 50
26 to 40
Thermal Shock Resistance, points 13 to 20
29 to 54

Alloy Composition

Aluminum (Al), % 93 to 95.4
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.050 to 0.2
0
Cobalt (Co), % 0
7.0 to 8.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
66.3 to 71.1
Magnesium (Mg), % 4.5 to 5.6
0
Manganese (Mn), % 0.050 to 0.2
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0
17 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.3
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.3 to 0.5
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.15
0

Comparable Variants