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851.0 Aluminum vs. EN 1.7375 Steel

851.0 aluminum belongs to the aluminum alloys classification, while EN 1.7375 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 851.0 aluminum and the bottom bar is EN 1.7375 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 3.9 to 9.1
20
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
74
Tensile Strength: Ultimate (UTS), MPa 130 to 140
620

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 180
460
Melting Completion (Liquidus), °C 630
1470
Melting Onset (Solidus), °C 360
1430
Specific Heat Capacity, J/kg-K 850
470
Thermal Conductivity, W/m-K 180
39
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
3.9
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.4
1.8
Embodied Energy, MJ/kg 160
23
Embodied Water, L/kg 1140
59

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 12 to 13
22
Strength to Weight: Bending, points 19 to 20
20
Thermal Diffusivity, mm2/s 69
11
Thermal Shock Resistance, points 6.1 to 6.3
18

Alloy Composition

Aluminum (Al), % 86.6 to 91.5
0.010 to 0.040
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0.7 to 1.3
0 to 0.25
Iron (Fe), % 0 to 0.7
94.5 to 96.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0.3 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0.3 to 0.7
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 2.0 to 3.0
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0