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A357.0 Aluminum vs. EN 1.4658 Stainless Steel

A357.0 aluminum belongs to the aluminum alloys classification, while EN 1.4658 stainless steel belongs to the iron alloys. There are 29 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 A357.0 aluminum and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
260
Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 3.7
28
Fatigue Strength, MPa 100
530
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Shear Strength, MPa 240
580
Tensile Strength: Ultimate (UTS), MPa 350
900
Tensile Strength: Yield (Proof), MPa 270
730

Thermal Properties

Latent Heat of Fusion, J/g 500
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 610
1450
Melting Onset (Solidus), °C 560
1400
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
16
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.5
Embodied Energy, MJ/kg 150
61
Embodied Water, L/kg 1110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
240
Resilience: Unit (Modulus of Resilience), kJ/m3 520
1280
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 38
32
Strength to Weight: Bending, points 43
26
Thermal Diffusivity, mm2/s 68
4.3
Thermal Shock Resistance, points 17
24

Alloy Composition

Aluminum (Al), % 90.8 to 93
0
Beryllium (Be), % 0.040 to 0.070
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0 to 0.2
0 to 1.0
Iron (Fe), % 0 to 0.2
50.9 to 63.7
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 6.5 to 7.5
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0.040 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0