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EN 1.4347 Stainless Steel vs. 296.0 Aluminum

EN 1.4347 stainless steel belongs to the iron alloys classification, while 296.0 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 1.4347 stainless steel and the bottom bar is 296.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 23
3.2 to 7.1
Fatigue Strength, MPa 320
47 to 70
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
27
Tensile Strength: Ultimate (UTS), MPa 660
260 to 270
Tensile Strength: Yield (Proof), MPa 480
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1410
630
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 490
870
Thermal Conductivity, W/m-K 15
130 to 150
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
33 to 37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
99 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 3.1
7.8
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 170
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
7.6 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 570
110 to 220
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 24
24 to 25
Strength to Weight: Bending, points 22
30 to 31
Thermal Diffusivity, mm2/s 4.0
51 to 56
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 0
89 to 94
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 25 to 27
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 62.2 to 69.4
0 to 1.2
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 0.35
Nickel (Ni), % 5.5 to 7.5
0 to 0.35
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.5
2.0 to 3.0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.35