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EN AC-71100 Aluminum vs. EN 1.4874 Stainless Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while EN 1.4874 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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-71100 aluminum and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
140
Elastic (Young's, Tensile) Modulus, GPa 72
210
Elongation at Break, % 1.1
6.7
Fatigue Strength, MPa 150
180
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 260
480
Tensile Strength: Yield (Proof), MPa 230
360

Thermal Properties

Latent Heat of Fusion, J/g 490
300
Maximum Temperature: Mechanical, °C 170
1150
Melting Completion (Liquidus), °C 580
1450
Melting Onset (Solidus), °C 520
1400
Specific Heat Capacity, J/kg-K 860
450
Thermal Expansion, µm/m-K 22
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
70
Density, g/cm3 2.9
8.4
Embodied Carbon, kg CO2/kg material 7.4
7.6
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 1010
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
29
Resilience: Unit (Modulus of Resilience), kJ/m3 360
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 25
16
Strength to Weight: Bending, points 31
16
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.35 to 0.65
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
18.5 to 22
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
23 to 38.9
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0