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AISI 205 Stainless Steel vs. EN AC-43000 Aluminum

AISI 205 stainless steel belongs to the iron alloys classification, while EN AC-43000 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 AISI 205 stainless steel and the bottom bar is EN AC-43000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 440
60 to 94
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 11 to 51
1.1 to 2.5
Fatigue Strength, MPa 410 to 640
68 to 76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
180 to 270
Tensile Strength: Yield (Proof), MPa 450 to 1100
97 to 230

Thermal Properties

Latent Heat of Fusion, J/g 280
540
Maximum Temperature: Mechanical, °C 880
170
Melting Completion (Liquidus), °C 1380
600
Melting Onset (Solidus), °C 1340
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 18
22

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 7.6
2.6
Embodied Carbon, kg CO2/kg material 2.6
7.8
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 150
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
2.9 to 5.7
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
66 to 360
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 26
54
Strength to Weight: Axial, points 29 to 52
20 to 29
Strength to Weight: Bending, points 25 to 37
28 to 36
Thermal Shock Resistance, points 16 to 29
8.6 to 12

Alloy Composition

Aluminum (Al), % 0
87 to 90.8
Carbon (C), % 0.12 to 0.25
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 62.6 to 68.1
0 to 0.55
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.2 to 0.45
Manganese (Mn), % 14 to 15.5
0 to 0.45
Nickel (Ni), % 1.0 to 1.7
0 to 0.050
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
9.0 to 11
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15