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380.0 Aluminum vs. S30435 Stainless Steel

380.0 aluminum belongs to the aluminum alloys classification, while S30435 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 380.0 aluminum and the bottom bar is S30435 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
160
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
51
Fatigue Strength, MPa 140
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Shear Strength, MPa 190
370
Tensile Strength: Ultimate (UTS), MPa 320
510
Tensile Strength: Yield (Proof), MPa 160
170

Thermal Properties

Latent Heat of Fusion, J/g 510
280
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 590
1420
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 100
16
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 83
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
14
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
2.9
Embodied Energy, MJ/kg 140
40
Embodied Water, L/kg 1040
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
210
Resilience: Unit (Modulus of Resilience), kJ/m3 170
77
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 31
18
Strength to Weight: Bending, points 36
18
Thermal Diffusivity, mm2/s 40
4.2
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 3.0 to 4.0
1.5 to 3.0
Iron (Fe), % 0 to 2.0
66.9 to 75.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Nickel (Ni), % 0 to 0.5
7.0 to 9.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0