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A206.0 Aluminum vs. EN 1.4971 Stainless Steel

A206.0 aluminum belongs to the aluminum alloys classification, while EN 1.4971 stainless steel belongs to the iron alloys. There are 29 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 A206.0 aluminum and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
240
Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 4.2 to 10
34
Fatigue Strength, MPa 90 to 180
270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
81
Shear Strength, MPa 260
530
Tensile Strength: Ultimate (UTS), MPa 390 to 440
800
Tensile Strength: Yield (Proof), MPa 250 to 380
340

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 670
1460
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 880
450
Thermal Conductivity, W/m-K 130
13
Thermal Expansion, µm/m-K 23
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
70
Density, g/cm3 3.0
8.4
Embodied Carbon, kg CO2/kg material 8.0
7.6
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
220
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 36 to 41
26
Strength to Weight: Bending, points 39 to 43
23
Thermal Diffusivity, mm2/s 48
3.4
Thermal Shock Resistance, points 17 to 19
19

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.1
24.3 to 37.1
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.050
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0