MakeItFrom.com
Menu (ESC)

4343 Aluminum vs. EN 1.7779 Steel

4343 aluminum belongs to the aluminum alloys classification, while EN 1.7779 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 4343 aluminum and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.4
16
Fatigue Strength, MPa 45
430
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 64
500
Tensile Strength: Ultimate (UTS), MPa 110
810
Tensile Strength: Yield (Proof), MPa 62
660

Thermal Properties

Latent Heat of Fusion, J/g 510
260
Maximum Temperature: Mechanical, °C 160
470
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 180
39
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 150
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.0
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.8
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1100
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1
120
Resilience: Unit (Modulus of Resilience), kJ/m3 27
1150
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 12
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 77
11
Thermal Shock Resistance, points 5.2
23

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0 to 0.040
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0
3.0 to 3.3
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 0 to 0.8
93.8 to 95.4
Manganese (Mn), % 0 to 0.1
0.3 to 0.5
Molybdenum (Mo), % 0
0.5 to 0.6
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 6.8 to 8.2
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0