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EN 1.7338 Steel vs. EN AC-47100 Aluminum

EN 1.7338 steel belongs to the iron alloys classification, while EN AC-47100 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.7338 steel and the bottom bar is EN AC-47100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
80
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 23
1.1
Fatigue Strength, MPa 220
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 490
270
Tensile Strength: Yield (Proof), MPa 300
160

Thermal Properties

Latent Heat of Fusion, J/g 260
570
Maximum Temperature: Mechanical, °C 430
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 40
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
100

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.6
7.6
Embodied Energy, MJ/kg 21
140
Embodied Water, L/kg 53
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 240
170
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 18
35
Thermal Diffusivity, mm2/s 11
54
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 0 to 0.040
81.4 to 88.8
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 1.0 to 1.5
0 to 0.1
Copper (Cu), % 0 to 0.3
0.7 to 1.2
Iron (Fe), % 95.4 to 97.8
0 to 1.3
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0.3 to 0.6
0 to 0.55
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 1.0
10.5 to 13.5
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.55
Residuals, % 0
0 to 0.25