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AISI 304Cu Stainless Steel vs. 357.0 Aluminum

AISI 304Cu stainless steel belongs to the iron alloys classification, while 357.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 304Cu stainless steel and the bottom bar is 357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
95
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 45
3.4
Fatigue Strength, MPa 190
76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 370
200
Tensile Strength: Ultimate (UTS), MPa 530
350
Tensile Strength: Yield (Proof), MPa 210
300

Thermal Properties

Latent Heat of Fusion, J/g 290
500
Maximum Temperature: Mechanical, °C 930
170
Melting Completion (Liquidus), °C 1410
620
Melting Onset (Solidus), °C 1370
560
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 13
150
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
39
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 3.0
8.0
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 150
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
11
Resilience: Unit (Modulus of Resilience), kJ/m3 110
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 19
38
Strength to Weight: Bending, points 19
43
Thermal Diffusivity, mm2/s 3.5
64
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.1
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 3.0 to 4.0
0 to 0.050
Iron (Fe), % 63.9 to 72
0 to 0.15
Magnesium (Mg), % 0
0.45 to 0.6
Manganese (Mn), % 0 to 2.0
0 to 0.030
Nickel (Ni), % 8.0 to 10
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15