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EN 1.4959 Stainless Steel vs. 535.0 Aluminum

EN 1.4959 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 (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 1.4959 stainless steel and the bottom bar is 535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 40
10
Fatigue Strength, MPa 170
70
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 430
190
Tensile Strength: Ultimate (UTS), MPa 630
270
Tensile Strength: Yield (Proof), MPa 190
140

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1090
170
Melting Completion (Liquidus), °C 1400
630
Melting Onset (Solidus), °C 1350
570
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 12
100
Thermal Expansion, µm/m-K 15
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
79

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.0
2.6
Embodied Carbon, kg CO2/kg material 5.4
9.4
Embodied Energy, MJ/kg 76
160
Embodied Water, L/kg 200
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
24
Resilience: Unit (Modulus of Resilience), kJ/m3 96
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 20
35
Thermal Diffusivity, mm2/s 3.2
42
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
91.5 to 93.6
Beryllium (Be), % 0
0.0030 to 0.0070
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 0.050
Iron (Fe), % 39.4 to 50.5
0 to 0.15
Magnesium (Mg), % 0
6.2 to 7.5
Manganese (Mn), % 0 to 1.5
0.1 to 0.25
Nickel (Ni), % 30 to 34
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
0 to 0.15
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.25 to 0.65
0.1 to 0.25
Residuals, % 0
0 to 0.15