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EN 1.4971 Stainless Steel vs. 710.0 Aluminum

EN 1.4971 stainless steel belongs to the iron alloys classification, while 710.0 aluminum belongs to the aluminum alloys. There are 29 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 1.4971 stainless steel and the bottom bar is 710.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
75
Elastic (Young's, Tensile) Modulus, GPa 210
70
Elongation at Break, % 34
2.2 to 3.6
Fatigue Strength, MPa 270
55 to 110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 81
26
Shear Strength, MPa 530
180
Tensile Strength: Ultimate (UTS), MPa 800
240 to 250
Tensile Strength: Yield (Proof), MPa 340
160

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 450
870
Thermal Conductivity, W/m-K 13
140
Thermal Expansion, µm/m-K 15
24

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
3.0
Embodied Carbon, kg CO2/kg material 7.6
8.0
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 300
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
4.9 to 7.9
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180 to 190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 23
29
Thermal Diffusivity, mm2/s 3.4
53
Thermal Shock Resistance, points 19
10 to 11

Alloy Composition

Aluminum (Al), % 0
90.5 to 93.1
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
0.35 to 0.65
Iron (Fe), % 24.3 to 37.1
0 to 0.5
Magnesium (Mg), % 0
0.6 to 0.8
Manganese (Mn), % 0 to 2.0
0 to 0.050
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
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
0 to 0.15
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
6.0 to 7.0
Residuals, % 0
0 to 0.15