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2025 Aluminum vs. EN 1.4710 Stainless Steel

2025 aluminum belongs to the aluminum alloys classification, while EN 1.4710 stainless steel belongs to the iron alloys. There are 22 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 2025 aluminum and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
260
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 15
20
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
74

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 190
750
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 520
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 150
24
Thermal Expansion, µm/m-K 23
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
5.0
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 7.9
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1130
76

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Thermal Diffusivity, mm2/s 58
6.5

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
0
Carbon (C), % 0
0.2 to 0.35
Chromium (Cr), % 0 to 0.1
6.0 to 8.0
Copper (Cu), % 3.9 to 5.0
0
Iron (Fe), % 0 to 1.0
87.4 to 92.3
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0.4 to 1.2
0.5 to 1.0
Molybdenum (Mo), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.5 to 1.2
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0