MakeItFrom.com
Menu (ESC)

7178 Aluminum vs. EN 1.0303 Steel

7178 aluminum belongs to the aluminum alloys classification, while EN 1.0303 steel belongs to the iron 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 7178 aluminum and the bottom bar is EN 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.5 to 12
12 to 25
Fatigue Strength, MPa 120 to 210
150 to 230
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 140 to 380
220 to 260
Tensile Strength: Ultimate (UTS), MPa 240 to 640
290 to 410
Tensile Strength: Yield (Proof), MPa 120 to 560
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 630
1470
Melting Onset (Solidus), °C 480
1430
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 130
53
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 91
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.2
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 52
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 2220
110 to 270
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 21 to 58
10 to 15
Strength to Weight: Bending, points 28 to 54
12 to 16
Thermal Diffusivity, mm2/s 47
14
Thermal Shock Resistance, points 10 to 28
9.2 to 13

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
0.020 to 0.060
Carbon (C), % 0
0.020 to 0.060
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.6 to 2.4
0
Iron (Fe), % 0 to 0.5
99.335 to 99.71
Magnesium (Mg), % 2.4 to 3.1
0
Manganese (Mn), % 0 to 0.3
0.25 to 0.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.3 to 7.3
0
Residuals, % 0 to 0.15
0