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EN 1.4005 Stainless Steel vs. 7076 Aluminum

EN 1.4005 stainless steel belongs to the iron alloys classification, while 7076 aluminum belongs to the aluminum alloys. There are 30 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 1.4005 stainless steel and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 13 to 21
6.2
Fatigue Strength, MPa 240 to 290
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
27
Shear Strength, MPa 390 to 450
310
Tensile Strength: Ultimate (UTS), MPa 630 to 750
530
Tensile Strength: Yield (Proof), MPa 370 to 500
460

Thermal Properties

Latent Heat of Fusion, J/g 270
380
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1440
630
Melting Onset (Solidus), °C 1400
460
Specific Heat Capacity, J/kg-K 480
860
Thermal Conductivity, W/m-K 30
140
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
35
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.0
8.0
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 100
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
31
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 650
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 23 to 27
49
Strength to Weight: Bending, points 21 to 24
48
Thermal Diffusivity, mm2/s 8.1
54
Thermal Shock Resistance, points 23 to 27
23

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.2
Carbon (C), % 0.060 to 0.15
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0.3 to 1.0
Iron (Fe), % 82.4 to 87.8
0 to 0.6
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0 to 1.5
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0.15 to 0.35
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.15