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R30556 Alloy vs. 6106 Aluminum

R30556 alloy belongs to the iron alloys classification, while 6106 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 6106 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 45
9.1
Fatigue Strength, MPa 320
88
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
26
Shear Strength, MPa 550
170
Tensile Strength: Ultimate (UTS), MPa 780
290
Tensile Strength: Yield (Proof), MPa 350
220

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1420
660
Melting Onset (Solidus), °C 1330
610
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 11
190
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
49
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
160

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 8.7
8.3
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 300
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
24
Resilience: Unit (Modulus of Resilience), kJ/m3 290
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
50
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 22
35
Thermal Diffusivity, mm2/s 2.9
78
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
97.2 to 99.3
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 21 to 23
0 to 0.2
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 20.4 to 38.2
0 to 0.35
Lanthanum (La), % 0.0050 to 0.1
0
Magnesium (Mg), % 0
0.4 to 0.8
Manganese (Mn), % 0.5 to 2.0
0.050 to 0.2
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
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0.3 to 1.3
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0 to 0.15
Residuals, % 0
0 to 0.15