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EN AC-42100 Aluminum vs. EN 1.4612 Stainless Steel

EN AC-42100 aluminum belongs to the aluminum alloys classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 24 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 EN AC-42100 aluminum and the bottom bar is EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.4 to 9.0
11
Fatigue Strength, MPa 76 to 82
860 to 950
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 280 to 290
1690 to 1850
Tensile Strength: Yield (Proof), MPa 210 to 230
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 500
280
Maximum Temperature: Mechanical, °C 170
790
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 600
1400
Specific Heat Capacity, J/kg-K 910
480
Thermal Expansion, µm/m-K 22
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
16
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.0
3.6
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
190 to 210
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 30 to 31
60 to 65
Strength to Weight: Bending, points 37 to 38
40 to 43
Thermal Shock Resistance, points 13
58 to 63

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
1.4 to 1.8
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
71.5 to 75.5
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
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), % 6.5 to 7.5
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.25
0.2 to 0.5
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0

Comparable Variants