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Grade 21 Titanium vs. C67400 Bronze

Grade 21 titanium belongs to the titanium alloys classification, while C67400 bronze belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 21 titanium and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 9.0 to 17
22 to 28
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 51
41
Shear Strength, MPa 550 to 790
310 to 350
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
480 to 610
Tensile Strength: Yield (Proof), MPa 870 to 1170
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 310
130
Melting Completion (Liquidus), °C 1740
890
Melting Onset (Solidus), °C 1690
870
Specific Heat Capacity, J/kg-K 500
400
Thermal Conductivity, W/m-K 7.5
100
Thermal Expansion, µm/m-K 7.1
21

Otherwise Unclassified Properties

Base Metal Price, % relative 60
23
Density, g/cm3 5.4
7.9
Embodied Carbon, kg CO2/kg material 32
2.8
Embodied Energy, MJ/kg 490
48
Embodied Water, L/kg 180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
300 to 660
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 32
20
Strength to Weight: Axial, points 46 to 69
17 to 22
Strength to Weight: Bending, points 38 to 50
17 to 20
Thermal Diffusivity, mm2/s 2.8
32
Thermal Shock Resistance, points 66 to 100
16 to 20

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0.5 to 2.0
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
57 to 60
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.35
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0
2.0 to 3.5
Molybdenum (Mo), % 14 to 16
0
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 2.2 to 3.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.17
0
Silicon (Si), % 0.15 to 0.25
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 76 to 81.2
0
Zinc (Zn), % 0
31.1 to 40
Residuals, % 0
0 to 0.5

Comparable Variants