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N08904 Stainless Steel vs. EN AC-43000 Aluminum

N08904 stainless steel belongs to the iron alloys classification, while EN AC-43000 aluminum belongs to the aluminum 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 N08904 stainless steel and the bottom bar is EN AC-43000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
60 to 94
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 38
1.1 to 2.5
Fatigue Strength, MPa 200
68 to 76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
27
Tensile Strength: Ultimate (UTS), MPa 540
180 to 270
Tensile Strength: Yield (Proof), MPa 240
97 to 230

Thermal Properties

Latent Heat of Fusion, J/g 300
540
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1390
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 12
140
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
38
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.5
Density, g/cm3 8.1
2.6
Embodied Carbon, kg CO2/kg material 5.8
7.8
Embodied Energy, MJ/kg 79
150
Embodied Water, L/kg 200
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
2.9 to 5.7
Resilience: Unit (Modulus of Resilience), kJ/m3 150
66 to 360
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 19
20 to 29
Strength to Weight: Bending, points 18
28 to 36
Thermal Diffusivity, mm2/s 3.1
60
Thermal Shock Resistance, points 12
8.6 to 12

Alloy Composition

Aluminum (Al), % 0
87 to 90.8
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 1.0 to 2.0
0 to 0.050
Iron (Fe), % 38.8 to 53
0 to 0.55
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.2 to 0.45
Manganese (Mn), % 0 to 2.0
0 to 0.45
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 23 to 28
0 to 0.050
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
9.0 to 11
Sulfur (S), % 0 to 0.035
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