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EN AC-45300 Aluminum vs. Grade 350 Maraging Steel

EN AC-45300 aluminum belongs to the aluminum alloys classification, while grade 350 maraging steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, 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 EN AC-45300 aluminum and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 1.0 to 2.8
4.1 to 18
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 27
75
Tensile Strength: Ultimate (UTS), MPa 220 to 290
1140 to 2420
Tensile Strength: Yield (Proof), MPa 150 to 230
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 470
270
Melting Completion (Liquidus), °C 630
1470
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 890
450
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
39
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.0
5.6
Embodied Energy, MJ/kg 150
74
Embodied Water, L/kg 1120
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 5.6
98 to 190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 23 to 29
38 to 82
Strength to Weight: Bending, points 30 to 35
29 to 49
Thermal Shock Resistance, points 10 to 13
35 to 74

Alloy Composition

Aluminum (Al), % 90.2 to 94.2
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
Cobalt (Co), % 0
11.5 to 12.5
Copper (Cu), % 1.0 to 1.5
0
Iron (Fe), % 0 to 0.65
61.2 to 64.6
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.35 to 0.65
0
Manganese (Mn), % 0 to 0.55
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0 to 0.25
18 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 4.5 to 5.5
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
1.3 to 1.6
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.15
0