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Grade 350 Maraging Steel vs. EN AC-45100 Aluminum

Grade 350 maraging steel belongs to the iron alloys classification, while EN AC-45100 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-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 4.1 to 18
1.0 to 2.8
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
300 to 360
Tensile Strength: Yield (Proof), MPa 830 to 2300
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 270
470
Melting Completion (Liquidus), °C 1470
630
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 450
890
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 39
10
Density, g/cm3 8.2
2.8
Embodied Carbon, kg CO2/kg material 5.6
7.9
Embodied Energy, MJ/kg 74
150
Embodied Water, L/kg 160
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
3.5 to 7.6
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
49
Strength to Weight: Axial, points 38 to 82
30 to 35
Strength to Weight: Bending, points 29 to 49
35 to 39
Thermal Shock Resistance, points 35 to 74
14 to 16

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
88 to 92.8
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
2.6 to 3.6
Iron (Fe), % 61.2 to 64.6
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.45
Manganese (Mn), % 0 to 0.1
0 to 0.55
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0 to 0.1
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
4.5 to 6.0
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 0.2
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.15