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A360.0 Aluminum vs. S31254 Stainless Steel

A360.0 aluminum belongs to the aluminum alloys classification, while S31254 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 A360.0 aluminum and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
190
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.6 to 5.0
40
Fatigue Strength, MPa 82 to 150
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
80
Shear Strength, MPa 180
490
Tensile Strength: Ultimate (UTS), MPa 180 to 320
720
Tensile Strength: Yield (Proof), MPa 170 to 260
330

Thermal Properties

Latent Heat of Fusion, J/g 530
300
Maximum Temperature: Mechanical, °C 170
1090
Melting Completion (Liquidus), °C 680
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 900
460
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
28
Density, g/cm3 2.6
8.0
Embodied Carbon, kg CO2/kg material 7.8
5.5
Embodied Energy, MJ/kg 150
74
Embodied Water, L/kg 1070
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.6 to 13
240
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 470
270
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 19 to 34
25
Strength to Weight: Bending, points 27 to 39
22
Thermal Diffusivity, mm2/s 48
3.8
Thermal Shock Resistance, points 8.5 to 15
15

Alloy Composition

Aluminum (Al), % 85.8 to 90.6
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0 to 0.6
0.5 to 1.0
Iron (Fe), % 0 to 1.3
51.4 to 56.3
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 0 to 0.5
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 9.0 to 10
0 to 0.8
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.25
0