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S44635 Stainless Steel vs. EN AC-44300 Aluminum

S44635 stainless steel belongs to the iron alloys classification, while EN AC-44300 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 S44635 stainless steel and the bottom bar is EN AC-44300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
68
Elastic (Young's, Tensile) Modulus, GPa 210
72
Elongation at Break, % 23
1.1
Fatigue Strength, MPa 390
100
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
27
Tensile Strength: Ultimate (UTS), MPa 710
270
Tensile Strength: Yield (Proof), MPa 580
150

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
33
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.8
2.5
Embodied Carbon, kg CO2/kg material 4.4
7.7
Embodied Energy, MJ/kg 62
140
Embodied Water, L/kg 170
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 810
150
Stiffness to Weight: Axial, points 15
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 25
29
Strength to Weight: Bending, points 23
36
Thermal Diffusivity, mm2/s 4.4
58
Thermal Shock Resistance, points 23
13

Alloy Composition

Aluminum (Al), % 0
84.3 to 89.5
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 24.5 to 26
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 61.5 to 68.5
0 to 1.0
Manganese (Mn), % 0 to 1.0
0 to 0.55
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 3.5 to 4.5
0
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
10.5 to 13.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 0.8
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.25