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R30556 Alloy vs. 4343 Aluminum

R30556 alloy belongs to the iron alloys classification, while 4343 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 R30556 alloy and the bottom bar is 4343 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
71
Elongation at Break, % 45
4.4
Fatigue Strength, MPa 320
45
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
27
Shear Strength, MPa 550
64
Tensile Strength: Ultimate (UTS), MPa 780
110
Tensile Strength: Yield (Proof), MPa 350
62

Thermal Properties

Latent Heat of Fusion, J/g 300
510
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1420
620
Melting Onset (Solidus), °C 1330
580
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 11
180
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
44
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
150

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
2.6
Embodied Carbon, kg CO2/kg material 8.7
7.9
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 300
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
4.1
Resilience: Unit (Modulus of Resilience), kJ/m3 290
27
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
53
Strength to Weight: Axial, points 26
12
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 2.9
77
Thermal Shock Resistance, points 18
5.2

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
90.3 to 93.2
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 21 to 23
0
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 20.4 to 38.2
0 to 0.8
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0 to 0.1
Molybdenum (Mo), % 2.5 to 4.0
0
Nickel (Ni), % 19 to 22.5
0
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.2 to 0.8
6.8 to 8.2
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0.3 to 1.3
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0 to 0.2
Residuals, % 0
0 to 0.15