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444.0 Aluminum vs. EN 1.4855 Stainless Steel

444.0 aluminum belongs to the aluminum alloys classification, while EN 1.4855 stainless steel belongs to the iron alloys. There are 28 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 444.0 aluminum and the bottom bar is EN 1.4855 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 50
150
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 25
4.6
Fatigue Strength, MPa 51
120
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 190
500
Tensile Strength: Yield (Proof), MPa 83
250

Thermal Properties

Latent Heat of Fusion, J/g 500
320
Maximum Temperature: Mechanical, °C 170
1050
Melting Completion (Liquidus), °C 610
1400
Melting Onset (Solidus), °C 600
1350
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 160
14
Thermal Expansion, µm/m-K 22
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
34
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.9
5.9
Embodied Energy, MJ/kg 150
85
Embodied Water, L/kg 1110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
19
Resilience: Unit (Modulus of Resilience), kJ/m3 49
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 28
18
Thermal Diffusivity, mm2/s 67
3.7
Thermal Shock Resistance, points 8.8
11

Alloy Composition

Aluminum (Al), % 90.5 to 93.5
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.6
42.6 to 51.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 25
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.5 to 7.5
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0