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EN 1.4460 Stainless Steel vs. 328.0 Aluminum

EN 1.4460 stainless steel belongs to the iron alloys classification, while 328.0 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.4460 stainless steel and the bottom bar is 328.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
60 to 82
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 21
1.6 to 2.1
Fatigue Strength, MPa 330
55 to 80
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 750
200 to 270
Tensile Strength: Yield (Proof), MPa 510
120 to 170

Thermal Properties

Latent Heat of Fusion, J/g 300
510
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
620
Melting Onset (Solidus), °C 1390
560
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
99

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 3.4
7.8
Embodied Energy, MJ/kg 48
140
Embodied Water, L/kg 180
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
2.8 to 5.0
Resilience: Unit (Modulus of Resilience), kJ/m3 640
92 to 200
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 27
21 to 28
Strength to Weight: Bending, points 24
28 to 34
Thermal Diffusivity, mm2/s 4.0
50
Thermal Shock Resistance, points 20
9.2 to 12

Alloy Composition

Aluminum (Al), % 0
84.5 to 91.1
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 25 to 28
0 to 0.35
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 60.2 to 69.2
0 to 1.0
Magnesium (Mg), % 0
0.2 to 0.6
Manganese (Mn), % 0 to 2.0
0.2 to 0.6
Molybdenum (Mo), % 1.3 to 2.0
0
Nickel (Ni), % 4.5 to 6.5
0 to 0.25
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
7.5 to 8.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.5