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EN AC-51200 Aluminum vs. N08925 Stainless Steel

EN AC-51200 aluminum belongs to the aluminum alloys classification, while N08925 stainless steel belongs to the iron alloys. There are 29 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-51200 aluminum and the bottom bar is N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 1.1
45
Fatigue Strength, MPa 100
310
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
80
Tensile Strength: Ultimate (UTS), MPa 220
680
Tensile Strength: Yield (Proof), MPa 150
340

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 910
460
Thermal Conductivity, W/m-K 92
13
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 74
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
33
Density, g/cm3 2.6
8.1
Embodied Carbon, kg CO2/kg material 9.6
6.2
Embodied Energy, MJ/kg 150
84
Embodied Water, L/kg 1150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
250
Resilience: Unit (Modulus of Resilience), kJ/m3 160
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 31
21
Thermal Diffusivity, mm2/s 39
3.5
Thermal Shock Resistance, points 10
15

Alloy Composition

Aluminum (Al), % 84.5 to 92
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.1
0.8 to 1.5
Iron (Fe), % 0 to 1.0
42.7 to 50.1
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 8.0 to 10.5
0
Manganese (Mn), % 0 to 0.55
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.1
24 to 26
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 2.5
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0