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EN 1.4945 Stainless Steel vs. 6082 Aluminum

EN 1.4945 stainless steel belongs to the iron alloys classification, while 6082 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.4945 stainless steel and the bottom bar is 6082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
40 to 95
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 19 to 34
6.3 to 18
Fatigue Strength, MPa 230 to 350
55 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 430 to 460
84 to 220
Tensile Strength: Ultimate (UTS), MPa 640 to 740
140 to 340
Tensile Strength: Yield (Proof), MPa 290 to 550
85 to 320

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 920
170
Melting Completion (Liquidus), °C 1490
650
Melting Onset (Solidus), °C 1440
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 14
160
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
42
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.1
2.7
Embodied Carbon, kg CO2/kg material 5.0
8.3
Embodied Energy, MJ/kg 73
150
Embodied Water, L/kg 150
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
19 to 43
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
52 to 710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 22 to 25
14 to 35
Strength to Weight: Bending, points 20 to 22
21 to 40
Thermal Diffusivity, mm2/s 3.7
67
Thermal Shock Resistance, points 14 to 16
6.0 to 15

Alloy Composition

Aluminum (Al), % 0
95.2 to 98.3
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 15.5 to 17.5
0 to 0.25
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 57.9 to 65.7
0 to 0.5
Magnesium (Mg), % 0
0.6 to 1.2
Manganese (Mn), % 0 to 1.5
0.4 to 1.0
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0.7 to 1.3
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15