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EN AC-42100 Aluminum vs. EN 1.4980 Stainless Steel

EN AC-42100 aluminum belongs to the aluminum alloys classification, while EN 1.4980 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4980 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.4 to 9.0
17
Fatigue Strength, MPa 76 to 82
410
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
75
Tensile Strength: Ultimate (UTS), MPa 280 to 290
1030
Tensile Strength: Yield (Proof), MPa 210 to 230
680

Thermal Properties

Latent Heat of Fusion, J/g 500
300
Maximum Temperature: Mechanical, °C 170
920
Melting Completion (Liquidus), °C 610
1430
Melting Onset (Solidus), °C 600
1380
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 150
13
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 8.0
6.0
Embodied Energy, MJ/kg 150
87
Embodied Water, L/kg 1110
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
150
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
1180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 30 to 31
36
Strength to Weight: Bending, points 37 to 38
28
Thermal Diffusivity, mm2/s 66
3.5
Thermal Shock Resistance, points 13
22

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
0 to 0.35
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0
0.030 to 0.080
Chromium (Cr), % 0
13.5 to 16
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
49.2 to 58.5
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
1.0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 6.5 to 7.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0