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A242.0 Aluminum vs. Grade 200 Maraging Steel

A242.0 aluminum belongs to the aluminum alloys classification, while grade 200 maraging steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, 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 A242.0 aluminum and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.6
9.1 to 18
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 27
74
Tensile Strength: Ultimate (UTS), MPa 220
970 to 1500

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Melting Completion (Liquidus), °C 680
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 870
460
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.3
4.5
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1130
140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 20
33 to 51
Strength to Weight: Bending, points 26
27 to 35
Thermal Shock Resistance, points 9.3
29 to 45

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.15 to 0.25
0
Cobalt (Co), % 0
8.0 to 9.0
Copper (Cu), % 3.7 to 4.5
0
Iron (Fe), % 0 to 0.8
67.8 to 71.8
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 1.8 to 2.3
17 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.6
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0.070 to 0.2
0.15 to 0.25
Zinc (Zn), % 0 to 0.1
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.15
0