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EN 1.4309 Stainless Steel vs. 535.0 Aluminum

EN 1.4309 stainless steel belongs to the iron alloys classification, while 535.0 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.4309 stainless steel and the bottom bar is 535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
70
Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 34
10
Fatigue Strength, MPa 170
70
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Tensile Strength: Ultimate (UTS), MPa 490
270
Tensile Strength: Yield (Proof), MPa 210
140

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 960
170
Melting Completion (Liquidus), °C 1420
630
Melting Onset (Solidus), °C 1380
570
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
79

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 3.1
9.4
Embodied Energy, MJ/kg 45
160
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
24
Resilience: Unit (Modulus of Resilience), kJ/m3 110
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 18
35
Thermal Diffusivity, mm2/s 4.1
42
Thermal Shock Resistance, points 11
12

Alloy Composition

Aluminum (Al), % 0
91.5 to 93.6
Beryllium (Be), % 0
0.0030 to 0.0070
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 64.2 to 73
0 to 0.15
Magnesium (Mg), % 0
6.2 to 7.5
Manganese (Mn), % 0 to 2.0
0.1 to 0.25
Nickel (Ni), % 9.0 to 12
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.5
0 to 0.15
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.15