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Grade 350 Maraging Steel vs. EN AC-42000 Aluminum

Grade 350 maraging steel belongs to the iron alloys classification, while EN AC-42000 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-42000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 4.1 to 18
1.1 to 2.4
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
170 to 270
Tensile Strength: Yield (Proof), MPa 830 to 2300
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 270
500
Melting Completion (Liquidus), °C 1470
610
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 450
900
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 39
9.5
Density, g/cm3 8.2
2.6
Embodied Carbon, kg CO2/kg material 5.6
8.0
Embodied Energy, MJ/kg 74
150
Embodied Water, L/kg 160
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
2.8 to 5.7
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
53
Strength to Weight: Axial, points 38 to 82
18 to 28
Strength to Weight: Bending, points 29 to 49
26 to 35
Thermal Shock Resistance, points 35 to 74
7.9 to 12

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
89.9 to 93.3
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 0.2
Iron (Fe), % 61.2 to 64.6
0 to 0.55
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0.2 to 0.65
Manganese (Mn), % 0 to 0.1
0 to 0.35
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0 to 0.15
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
6.5 to 7.5
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 1.3 to 1.6
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.15