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Grade 200 Maraging Steel vs. EN AC-45400 Aluminum

Grade 200 maraging steel belongs to the iron alloys classification, while EN AC-45400 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 200 maraging steel and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 9.1 to 18
6.7
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 74
27
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
260
Tensile Strength: Yield (Proof), MPa 690 to 1490
130

Thermal Properties

Latent Heat of Fusion, J/g 260
470
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 460
880
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.2
2.8
Embodied Carbon, kg CO2/kg material 4.5
7.8
Embodied Energy, MJ/kg 59
150
Embodied Water, L/kg 140
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
14
Resilience: Unit (Modulus of Resilience), kJ/m3 1240 to 5740
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
49
Strength to Weight: Axial, points 33 to 51
25
Strength to Weight: Bending, points 27 to 35
32
Thermal Shock Resistance, points 29 to 45
12

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
88.4 to 92.9
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 8.0 to 9.0
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 67.8 to 71.8
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.1
0 to 0.55
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 17 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), % 0.15 to 0.25
0 to 0.25
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.15