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AISI 441 Stainless Steel vs. EN AC-51300 Aluminum

AISI 441 stainless steel belongs to the iron alloys classification, while EN AC-51300 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 AISI 441 stainless steel and the bottom bar is EN AC-51300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
65
Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 23
3.7
Fatigue Strength, MPa 180
78
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Tensile Strength: Ultimate (UTS), MPa 470
190
Tensile Strength: Yield (Proof), MPa 270
110

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 910
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 23
110
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
31
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.8
9.1
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 130
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 190
87
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 17
28
Thermal Diffusivity, mm2/s 6.1
45
Thermal Shock Resistance, points 16
8.6

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 76 to 82.2
0 to 0.55
Magnesium (Mg), % 0
4.5 to 6.5
Manganese (Mn), % 0 to 1.0
0 to 0.45
Nickel (Ni), % 0 to 1.0
0
Niobium (Nb), % 0.3 to 0.9
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.55
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.1 to 0.5
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15