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EN 1.4659 Stainless Steel vs. Sintered 6061 Aluminum

EN 1.4659 stainless steel belongs to the iron alloys classification, while sintered 6061 aluminum belongs to the aluminum alloys. There are 29 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 1.4659 stainless steel and the bottom bar is sintered 6061 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 49
0.5 to 6.0
Fatigue Strength, MPa 460
32 to 62
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
25
Tensile Strength: Ultimate (UTS), MPa 900
83 to 210
Tensile Strength: Yield (Proof), MPa 480
62 to 190

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1480
640
Melting Onset (Solidus), °C 1430
610
Specific Heat Capacity, J/kg-K 460
900
Thermal Conductivity, W/m-K 12
200
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
52
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
170

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 6.5
8.3
Embodied Energy, MJ/kg 89
150
Embodied Water, L/kg 220
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
0.68 to 7.0
Resilience: Unit (Modulus of Resilience), kJ/m3 550
28 to 280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 31
8.6 to 21
Strength to Weight: Bending, points 25
16 to 29
Thermal Diffusivity, mm2/s 3.2
81
Thermal Shock Resistance, points 19
3.8 to 9.4

Alloy Composition

Aluminum (Al), % 0
96 to 99.4
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 1.0 to 2.0
0 to 0.5
Iron (Fe), % 35.7 to 45.7
0
Magnesium (Mg), % 0
0.4 to 1.2
Manganese (Mn), % 2.0 to 4.0
0
Molybdenum (Mo), % 5.5 to 6.5
0
Nickel (Ni), % 21 to 23
0
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.7
0.2 to 0.8
Sulfur (S), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.5
0
Residuals, % 0
0 to 1.5