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850.0 Aluminum vs. EN 1.4618 Stainless Steel

850.0 aluminum belongs to the aluminum alloys classification, while EN 1.4618 stainless steel belongs to the iron alloys. There are 31 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 850.0 aluminum and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 7.9
51
Fatigue Strength, MPa 59
240 to 250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 100
480 to 500
Tensile Strength: Ultimate (UTS), MPa 140
680 to 700
Tensile Strength: Yield (Proof), MPa 76
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 190
900
Melting Completion (Liquidus), °C 650
1400
Melting Onset (Solidus), °C 370
1360
Specific Heat Capacity, J/kg-K 850
480
Thermal Conductivity, W/m-K 180
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
13
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.5
2.7
Embodied Energy, MJ/kg 160
39
Embodied Water, L/kg 1160
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 42
160 to 170
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 12
24 to 25
Strength to Weight: Bending, points 19
22 to 23
Thermal Diffusivity, mm2/s 69
4.0
Thermal Shock Resistance, points 6.1
15 to 16

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0.7 to 1.3
1.0 to 2.5
Iron (Fe), % 0 to 0.7
62.7 to 72.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
5.5 to 9.5
Nickel (Ni), % 0.7 to 1.3
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0