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Grade 33 Titanium vs. R30003 Cobalt

Grade 33 titanium belongs to the titanium 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.

For each property being compared, the top bar is grade 33 titanium and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 23
10 to 73
Fatigue Strength, MPa 250
320 to 560
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
83
Tensile Strength: Ultimate (UTS), MPa 390
970 to 1720
Tensile Strength: Yield (Proof), MPa 350
510 to 1090

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Melting Completion (Liquidus), °C 1660
1400
Melting Onset (Solidus), °C 1610
1440
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 55
95
Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 33
8.0
Embodied Energy, MJ/kg 530
110
Embodied Water, L/kg 200
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 590
600 to 2790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 24
32 to 57
Strength to Weight: Bending, points 26
26 to 38
Thermal Diffusivity, mm2/s 8.7
3.3
Thermal Shock Resistance, points 30
26 to 45

Alloy Composition

Boron (B), % 0
0 to 0.1
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0.1 to 0.2
19 to 21
Cobalt (Co), % 0
39 to 41
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
10 to 20.5
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0.35 to 0.55
14 to 16
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.010 to 0.020
0
Phosphorus (P), % 0
0 to 0.015
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.1 to 99.52
0
Residuals, % 0 to 0.4
0