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S30441 Stainless Steel vs. Sintered 6061 Aluminum

S30441 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 S30441 stainless steel and the bottom bar is sintered 6061 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 45
0.5 to 6.0
Fatigue Strength, MPa 210
32 to 62
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
25
Tensile Strength: Ultimate (UTS), MPa 580
83 to 210
Tensile Strength: Yield (Proof), MPa 230
62 to 190

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1370
610
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
200
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
52
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
170

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.4
8.3
Embodied Energy, MJ/kg 50
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
0.68 to 7.0
Resilience: Unit (Modulus of Resilience), kJ/m3 140
28 to 280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 21
8.6 to 21
Strength to Weight: Bending, points 20
16 to 29
Thermal Diffusivity, mm2/s 4.0
81
Thermal Shock Resistance, points 13
3.8 to 9.4

Alloy Composition

Aluminum (Al), % 0
96 to 99.4
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 1.5 to 2.5
0 to 0.5
Iron (Fe), % 62 to 71.7
0
Magnesium (Mg), % 0
0.4 to 1.2
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10.5
0
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 1.0 to 2.0
0.2 to 0.8
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0.2 to 0.8
0
Residuals, % 0
0 to 1.5