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EN 1.4634 Stainless Steel vs. 1350 Aluminum

EN 1.4634 stainless steel belongs to the iron alloys classification, while 1350 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 1.4634 stainless steel and the bottom bar is 1350 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 21
1.4 to 30
Fatigue Strength, MPa 180
24 to 50
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 340
44 to 110
Tensile Strength: Ultimate (UTS), MPa 540
68 to 190
Tensile Strength: Yield (Proof), MPa 280
25 to 170

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 900
170
Melting Completion (Liquidus), °C 1430
660
Melting Onset (Solidus), °C 1390
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 21
230
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
61 to 62
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
200 to 210

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.9
8.3
Embodied Energy, MJ/kg 42
160
Embodied Water, L/kg 140
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
0.77 to 54
Resilience: Unit (Modulus of Resilience), kJ/m3 200
4.4 to 200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 20
7.0 to 19
Strength to Weight: Bending, points 19
14 to 27
Thermal Diffusivity, mm2/s 5.8
96
Thermal Shock Resistance, points 19
3.0 to 8.2

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
99.5 to 100
Boron (B), % 0
0 to 0.050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 18.5
0 to 0.010
Copper (Cu), % 0 to 0.5
0 to 0.050
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 74.9 to 81.8
0 to 0.4
Manganese (Mn), % 0 to 1.0
0 to 0.010
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0.2 to 1.5
0 to 0.1
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.020
Vanadium (V), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.1