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EN AC-48000 Aluminum vs. EN 1.4912 Stainless Steel

EN AC-48000 aluminum belongs to the aluminum alloys classification, while EN 1.4912 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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-48000 aluminum and the bottom bar is EN 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
180
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.0
40
Fatigue Strength, MPa 85 to 86
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 220 to 310
610
Tensile Strength: Yield (Proof), MPa 210 to 270
230

Thermal Properties

Latent Heat of Fusion, J/g 570
290
Maximum Temperature: Mechanical, °C 190
940
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.9
3.8
Embodied Energy, MJ/kg 140
55
Embodied Water, L/kg 1030
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
190
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
130
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 23 to 33
22
Strength to Weight: Bending, points 31 to 39
20
Thermal Diffusivity, mm2/s 54
4.2
Thermal Shock Resistance, points 10 to 15
14

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0.8 to 1.5
0
Iron (Fe), % 0 to 0.7
64.6 to 73.6
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Nickel (Ni), % 0.7 to 1.3
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 10.5 to 13.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0