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R30556 Alloy vs. 2011A Aluminum

R30556 alloy belongs to the iron alloys classification, while 2011A aluminum belongs to the aluminum 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 R30556 alloy and the bottom bar is 2011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
70
Elongation at Break, % 45
6.8 to 16
Fatigue Strength, MPa 320
75 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
26
Shear Strength, MPa 550
190 to 250
Tensile Strength: Ultimate (UTS), MPa 780
310 to 410
Tensile Strength: Yield (Proof), MPa 350
140 to 310

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1420
660
Melting Onset (Solidus), °C 1330
550
Specific Heat Capacity, J/kg-K 450
870
Thermal Conductivity, W/m-K 11
130
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
33
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
96

Otherwise Unclassified Properties

Base Metal Price, % relative 70
11
Density, g/cm3 8.4
3.1
Embodied Carbon, kg CO2/kg material 8.7
7.9
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 300
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
20 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 290
140 to 670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
44
Strength to Weight: Axial, points 26
28 to 37
Strength to Weight: Bending, points 22
33 to 40
Thermal Diffusivity, mm2/s 2.9
49
Thermal Shock Resistance, points 18
14 to 18

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
91.5 to 95.1
Bismuth (Bi), % 0
0.2 to 0.6
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
4.5 to 6.0
Iron (Fe), % 20.4 to 38.2
0 to 0.5
Lanthanum (La), % 0.0050 to 0.1
0
Lead (Pb), % 0
0.2 to 0.6
Manganese (Mn), % 0.5 to 2.0
0
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
0 to 0.4
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 0.3
Residuals, % 0
0 to 0.15