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EN 1.4971 Stainless Steel vs. 392.0 Aluminum

EN 1.4971 stainless steel belongs to the iron alloys classification, while 392.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 1.4971 stainless steel and the bottom bar is 392.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
75
Elongation at Break, % 34
0.86
Fatigue Strength, MPa 270
190
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
28
Tensile Strength: Ultimate (UTS), MPa 800
290
Tensile Strength: Yield (Proof), MPa 340
270

Thermal Properties

Latent Heat of Fusion, J/g 300
670
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
670
Melting Onset (Solidus), °C 1410
580
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 15
19

Otherwise Unclassified Properties

Base Metal Price, % relative 70
10
Density, g/cm3 8.4
2.5
Embodied Carbon, kg CO2/kg material 7.6
7.5
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 300
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 280
490
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 24
56
Strength to Weight: Axial, points 26
32
Strength to Weight: Bending, points 23
39
Thermal Diffusivity, mm2/s 3.4
60
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 0
73.9 to 80.6
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0.4 to 0.8
Iron (Fe), % 24.3 to 37.1
0 to 1.5
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0 to 2.0
0.2 to 0.6
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0 to 0.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
18 to 20
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5