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3105 Aluminum vs. Grade 200 Maraging Steel

3105 aluminum belongs to the aluminum alloys classification, while grade 200 maraging steel belongs to the iron alloys. There are 24 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 3105 aluminum and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.1 to 20
9.1 to 18
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 26
74
Shear Strength, MPa 77 to 140
600 to 890
Tensile Strength: Ultimate (UTS), MPa 120 to 240
970 to 1500
Tensile Strength: Yield (Proof), MPa 46 to 220
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
460
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.2
4.5
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
1240 to 5740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 12 to 24
33 to 51
Strength to Weight: Bending, points 20 to 31
27 to 35
Thermal Shock Resistance, points 5.2 to 11
29 to 45

Alloy Composition

Aluminum (Al), % 96 to 99.5
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 to 0.2
0
Cobalt (Co), % 0
8.0 to 9.0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
67.8 to 71.8
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
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 to 0.1
0.15 to 0.25
Zinc (Zn), % 0 to 0.4
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.15
0

Comparable Variants