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336.0 Aluminum vs. AISI 409Cb Stainless Steel

336.0 aluminum belongs to the aluminum alloys classification, while AISI 409Cb stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 336.0 aluminum and the bottom bar is AISI 409Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
190
Elongation at Break, % 0.5
24
Fatigue Strength, MPa 80 to 93
140
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
75
Shear Strength, MPa 190 to 250
270
Tensile Strength: Ultimate (UTS), MPa 250 to 320
420
Tensile Strength: Yield (Proof), MPa 190 to 300
200

Thermal Properties

Latent Heat of Fusion, J/g 570
270
Maximum Temperature: Mechanical, °C 210
710
Melting Completion (Liquidus), °C 570
1450
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 120
25
Thermal Expansion, µm/m-K 19
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 95
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
8.5
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.2
Embodied Energy, MJ/kg 140
31
Embodied Water, L/kg 1010
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.1 to 1.6
83
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 580
100
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 25 to 32
15
Strength to Weight: Bending, points 32 to 38
16
Thermal Diffusivity, mm2/s 48
6.7
Thermal Shock Resistance, points 12 to 16
15

Alloy Composition

Aluminum (Al), % 79.1 to 85.8
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
10.5 to 11.7
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 0 to 1.2
84.9 to 89.5
Magnesium (Mg), % 0.7 to 1.3
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Nickel (Ni), % 2.0 to 3.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.75
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 11 to 13
0 to 1.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0