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AISI 301L Stainless Steel vs. EN AC-45300 Aluminum

AISI 301L stainless steel belongs to the iron alloys classification, while EN AC-45300 aluminum belongs to the aluminum 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 AISI 301L stainless steel and the bottom bar is EN AC-45300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
94 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 22 to 50
1.0 to 2.8
Fatigue Strength, MPa 240 to 530
59 to 72
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 620 to 1040
220 to 290
Tensile Strength: Yield (Proof), MPa 250 to 790
150 to 230

Thermal Properties

Latent Heat of Fusion, J/g 280
470
Maximum Temperature: Mechanical, °C 890
170
Melting Completion (Liquidus), °C 1430
630
Melting Onset (Solidus), °C 1390
590
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 15
150
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
36
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
120

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.7
8.0
Embodied Energy, MJ/kg 39
150
Embodied Water, L/kg 130
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
2.7 to 5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1580
160 to 390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 22 to 37
23 to 29
Strength to Weight: Bending, points 21 to 29
30 to 35
Thermal Diffusivity, mm2/s 4.1
60
Thermal Shock Resistance, points 14 to 24
10 to 13

Alloy Composition

Aluminum (Al), % 0
90.2 to 94.2
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
1.0 to 1.5
Iron (Fe), % 70.7 to 78
0 to 0.65
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0.35 to 0.65
Manganese (Mn), % 0 to 2.0
0 to 0.55
Nickel (Ni), % 6.0 to 8.0
0 to 0.25
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
4.5 to 5.5
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15