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Grade 300 Maraging Steel vs. EN AC-51100 Aluminum

Grade 300 maraging steel belongs to the iron alloys classification, while EN AC-51100 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 300 maraging steel and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 6.5 to 18
4.5
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
160
Tensile Strength: Yield (Proof), MPa 760 to 1990
80

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1480
640
Melting Onset (Solidus), °C 1430
620
Specific Heat Capacity, J/kg-K 450
900
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 34
9.5
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 5.1
8.7
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
6.0
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
51
Strength to Weight: Axial, points 35 to 68
17
Strength to Weight: Bending, points 28 to 43
25
Thermal Shock Resistance, points 31 to 62
7.3

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
94.5 to 97.5
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 8.5 to 9.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 65 to 68.4
0 to 0.55
Magnesium (Mg), % 0
2.5 to 3.5
Manganese (Mn), % 0 to 0.1
0 to 0.45
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
0 to 0.55
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.5 to 0.8
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.15