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EN 1.4612 Stainless Steel vs. EN AC-44100 Aluminum

EN 1.4612 stainless steel belongs to the iron alloys classification, while EN AC-44100 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 1.4612 stainless steel and the bottom bar is EN AC-44100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 11
4.9
Fatigue Strength, MPa 860 to 950
64
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
180
Tensile Strength: Yield (Proof), MPa 1570 to 1730
87

Thermal Properties

Latent Heat of Fusion, J/g 280
570
Maximum Temperature: Mechanical, °C 790
170
Melting Completion (Liquidus), °C 1450
590
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 11
21

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 3.6
7.7
Embodied Energy, MJ/kg 50
140
Embodied Water, L/kg 140
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
7.1
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 60 to 65
19
Strength to Weight: Bending, points 40 to 43
27
Thermal Shock Resistance, points 58 to 63
8.2

Alloy Composition


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Aluminum (Al), % 1.4 to 1.8
84.4 to 89.5
Carbon (C), % 0 to 0.015
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 71.5 to 75.5
0 to 0.65
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 0.1
0 to 0.55
Molybdenum (Mo), % 1.8 to 2.3
0
Nickel (Ni), % 10.2 to 11.3
0 to 0.1
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
10.5 to 13.5
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0.2 to 0.5
0 to 0.2
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15