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EN 1.4597 Stainless Steel vs. 1080A Aluminum

EN 1.4597 stainless steel belongs to the iron alloys classification, while 1080A aluminum belongs to the aluminum alloys. There are 31 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 EN 1.4597 stainless steel and the bottom bar is 1080A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
18 to 40
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 45
2.3 to 34
Fatigue Strength, MPa 300
18 to 50
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 470
49 to 81
Tensile Strength: Ultimate (UTS), MPa 680
74 to 140
Tensile Strength: Yield (Proof), MPa 330
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 860
170
Melting Completion (Liquidus), °C 1400
640
Melting Onset (Solidus), °C 1350
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
230
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
62
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
200

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.5
8.3
Embodied Energy, MJ/kg 36
160
Embodied Water, L/kg 140
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
3.1 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 280
2.1 to 100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
7.6 to 15
Strength to Weight: Bending, points 22
14 to 22
Thermal Diffusivity, mm2/s 4.1
94
Thermal Shock Resistance, points 15
3.3 to 6.4

Alloy Composition

Aluminum (Al), % 0
99.8 to 100
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 15 to 18
0
Copper (Cu), % 2.0 to 3.5
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 63 to 76.4
0 to 0.15
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 6.5 to 9.0
0 to 0.020
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.060