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2025 Aluminum vs. Type 3 Magnetic Alloy

2025 aluminum belongs to the aluminum alloys classification, while Type 3 magnetic alloy belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 2025 aluminum and the bottom bar is Type 3 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
180
Elongation at Break, % 15
43
Fatigue Strength, MPa 130
170
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
70
Shear Strength, MPa 240
380
Tensile Strength: Ultimate (UTS), MPa 400
550
Tensile Strength: Yield (Proof), MPa 260
210

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 190
910
Melting Completion (Liquidus), °C 640
1370
Melting Onset (Solidus), °C 520
1320
Specific Heat Capacity, J/kg-K 870
450
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
55
Density, g/cm3 3.0
8.7
Embodied Carbon, kg CO2/kg material 7.9
8.7
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1130
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
190
Resilience: Unit (Modulus of Resilience), kJ/m3 450
120
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 46
22
Strength to Weight: Axial, points 37
18
Strength to Weight: Bending, points 40
17
Thermal Shock Resistance, points 18
18

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
2.0 to 3.0
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 3.9 to 5.0
4.0 to 6.0
Iron (Fe), % 0 to 1.0
9.9 to 19
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0.4 to 1.2
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
75 to 78
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0.5 to 1.2
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0