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Grade 21 Titanium vs. C64800 Bronze

Grade 21 titanium belongs to the titanium alloys classification, while C64800 bronze belongs to the copper 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 21 titanium and the bottom bar is C64800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
120
Elongation at Break, % 9.0 to 17
8.0
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 51
44
Shear Strength, MPa 550 to 790
380
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
640
Tensile Strength: Yield (Proof), MPa 870 to 1170
630

Thermal Properties

Latent Heat of Fusion, J/g 410
220
Maximum Temperature: Mechanical, °C 310
200
Melting Completion (Liquidus), °C 1740
1090
Melting Onset (Solidus), °C 1690
1030
Specific Heat Capacity, J/kg-K 500
390
Thermal Conductivity, W/m-K 7.5
260
Thermal Expansion, µm/m-K 7.1
17

Otherwise Unclassified Properties

Base Metal Price, % relative 60
33
Density, g/cm3 5.4
8.9
Embodied Carbon, kg CO2/kg material 32
2.7
Embodied Energy, MJ/kg 490
43
Embodied Water, L/kg 180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
51
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
1680
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 32
18
Strength to Weight: Axial, points 46 to 69
20
Strength to Weight: Bending, points 38 to 50
19
Thermal Diffusivity, mm2/s 2.8
75
Thermal Shock Resistance, points 66 to 100
23

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0
0 to 0.090
Cobalt (Co), % 0
1.0 to 3.0
Copper (Cu), % 0
92.4 to 98.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 1.0
Lead (Pb), % 0
0 to 0.050
Molybdenum (Mo), % 14 to 16
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 2.2 to 3.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.17
0
Phosphorus (P), % 0
0 to 0.5
Silicon (Si), % 0.15 to 0.25
0.2 to 1.0
Tin (Sn), % 0
0 to 0.5
Titanium (Ti), % 76 to 81.2
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5