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850.0 Aluminum vs. EN 1.4878 Stainless Steel

850.0 aluminum belongs to the aluminum alloys classification, while EN 1.4878 stainless steel belongs to the iron alloys. There are 31 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 850.0 aluminum and the bottom bar is EN 1.4878 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
180
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 7.9
45
Fatigue Strength, MPa 59
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 100
430
Tensile Strength: Ultimate (UTS), MPa 140
610
Tensile Strength: Yield (Proof), MPa 76
210

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 190
850
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 370
1380
Specific Heat Capacity, J/kg-K 850
480
Thermal Conductivity, W/m-K 180
15
Thermal Expansion, µm/m-K 23
17

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
16
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.5
3.2
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1160
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
210
Resilience: Unit (Modulus of Resilience), kJ/m3 42
120
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 12
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 69
4.0
Thermal Shock Resistance, points 6.1
13

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.7
65 to 74
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Nickel (Ni), % 0.7 to 1.3
9.0 to 12
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0 to 0.8
Residuals, % 0 to 0.3
0