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EN 1.4826 Stainless Steel vs. A356.0 Aluminum

EN 1.4826 stainless steel belongs to the iron alloys classification, while A356.0 aluminum belongs to the aluminum 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 1.4826 stainless steel and the bottom bar is A356.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 9.1
3.0 to 6.0
Fatigue Strength, MPa 140
50 to 90
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 500
160 to 270
Tensile Strength: Yield (Proof), MPa 260
83 to 200

Thermal Properties

Latent Heat of Fusion, J/g 310
500
Maximum Temperature: Mechanical, °C 950
170
Melting Completion (Liquidus), °C 1400
610
Melting Onset (Solidus), °C 1360
570
Specific Heat Capacity, J/kg-K 490
900
Thermal Conductivity, W/m-K 14
150
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
140

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 3.3
8.0
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 160
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
4.8 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 170
49 to 300
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 18
17 to 29
Strength to Weight: Bending, points 18
25 to 36
Thermal Diffusivity, mm2/s 3.7
64
Thermal Shock Resistance, points 11
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
91.1 to 93.3
Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 21 to 23
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 60.4 to 68.7
0 to 0.2
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15