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Grade 350 Maraging Steel vs. EN AC-43300 Aluminum

Grade 350 maraging steel belongs to the iron alloys classification, while EN AC-43300 aluminum belongs to the aluminum 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 grade 350 maraging steel and the bottom bar is EN AC-43300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 4.1 to 18
3.4 to 6.7
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
280 to 290
Tensile Strength: Yield (Proof), MPa 830 to 2300
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 270
540
Melting Completion (Liquidus), °C 1470
600
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 450
910
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 39
9.5
Density, g/cm3 8.2
2.5
Embodied Carbon, kg CO2/kg material 5.6
7.9
Embodied Energy, MJ/kg 74
150
Embodied Water, L/kg 160
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
9.1 to 17
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
54
Strength to Weight: Axial, points 38 to 82
31 to 32
Strength to Weight: Bending, points 29 to 49
37 to 38
Thermal Shock Resistance, points 35 to 74
13 to 14

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
88.9 to 90.8
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 11.5 to 12.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 61.2 to 64.6
0 to 0.19
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0 to 0.1
0 to 0.1
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
9.0 to 10
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.3 to 1.6
0 to 0.15
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.1