MakeItFrom.com
Menu (ESC)

7049 Aluminum vs. R30003 Cobalt

7049 aluminum belongs to the aluminum alloys classification, while R30003 cobalt belongs to the cobalt alloys. There are 27 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 7049 aluminum and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 6.2 to 7.0
10 to 73
Fatigue Strength, MPa 160 to 170
320 to 560
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
83
Tensile Strength: Ultimate (UTS), MPa 510 to 530
970 to 1720
Tensile Strength: Yield (Proof), MPa 420 to 450
510 to 1090

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 480
1440
Specific Heat Capacity, J/kg-K 860
450
Thermal Conductivity, W/m-K 130
13
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
95
Density, g/cm3 3.1
8.4
Embodied Carbon, kg CO2/kg material 8.1
8.0
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 1110
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
600 to 2790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 46 to 47
32 to 57
Strength to Weight: Bending, points 46 to 47
26 to 38
Thermal Diffusivity, mm2/s 51
3.3
Thermal Shock Resistance, points 22 to 23
26 to 45

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Boron (B), % 0
0 to 0.1
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0.1 to 0.22
19 to 21
Cobalt (Co), % 0
39 to 41
Copper (Cu), % 1.2 to 1.9
0
Iron (Fe), % 0 to 0.35
10 to 20.5
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
1.5 to 2.5
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0
14 to 16
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.25
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0