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EN 1.0258 Steel vs. EN AC-44100 Aluminum

EN 1.0258 steel belongs to the iron alloys classification, while EN AC-44100 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.0258 steel and the bottom bar is EN AC-44100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
59
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 23
4.9
Fatigue Strength, MPa 200
64
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 490
180
Tensile Strength: Yield (Proof), MPa 290
87

Thermal Properties

Latent Heat of Fusion, J/g 250
570
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 49
130
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 1.5
7.7
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 47
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
7.1
Resilience: Unit (Modulus of Resilience), kJ/m3 220
53
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 24
55
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 13
58
Thermal Shock Resistance, points 16
8.2

Alloy Composition


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Aluminum (Al), % 0
84.4 to 89.5
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.3
0 to 0.15
Iron (Fe), % 96.9 to 100
0 to 0.65
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.4
0 to 0.55
Molybdenum (Mo), % 0 to 0.080
0
Nickel (Ni), % 0 to 0.3
0 to 0.1
Niobium (Nb), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
10.5 to 13.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.040
0 to 0.2
Vanadium (V), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15