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3105 Aluminum vs. EN 1.4612 Stainless Steel

3105 aluminum belongs to the aluminum alloys classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.1 to 20
11
Fatigue Strength, MPa 39 to 95
860 to 950
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 77 to 140
1010 to 1110
Tensile Strength: Ultimate (UTS), MPa 120 to 240
1690 to 1850
Tensile Strength: Yield (Proof), MPa 46 to 220
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 180
790
Melting Completion (Liquidus), °C 660
1450
Melting Onset (Solidus), °C 640
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 24
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
16
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.2
3.6
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
190 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 12 to 24
60 to 65
Strength to Weight: Bending, points 20 to 31
40 to 43
Thermal Shock Resistance, points 5.2 to 11
58 to 63

Alloy Composition

Aluminum (Al), % 96 to 99.5
1.4 to 1.8
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0 to 0.2
11 to 12.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
71.5 to 75.5
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0 to 0.1
Molybdenum (Mo), % 0
1.8 to 2.3
Nickel (Ni), % 0
10.2 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.6
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.1
0.2 to 0.5
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0 to 0.15
0

Comparable Variants