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EN 1.4886 Stainless Steel vs. C355.0 Aluminum

EN 1.4886 stainless steel belongs to the iron alloys classification, while C355.0 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.4886 stainless steel and the bottom bar is C355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
86 to 90
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 45
2.7 to 3.8
Fatigue Strength, MPa 280
76 to 84
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 580
290 to 310
Tensile Strength: Yield (Proof), MPa 300
200 to 230

Thermal Properties

Latent Heat of Fusion, J/g 320
470
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1390
620
Melting Onset (Solidus), °C 1340
570
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 12
150
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
39
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 5.4
8.0
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 190
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
7.5 to 9.8
Resilience: Unit (Modulus of Resilience), kJ/m3 230
290 to 380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 20
30 to 32
Strength to Weight: Bending, points 19
36 to 37
Thermal Diffusivity, mm2/s 3.1
60
Thermal Shock Resistance, points 14
13 to 14

Alloy Composition

Aluminum (Al), % 0
91.7 to 94.1
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0
1.0 to 1.5
Iron (Fe), % 38.7 to 49
0 to 0.2
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0 to 2.0
0 to 0.1
Nickel (Ni), % 33 to 37
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.0 to 2.0
4.5 to 5.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15