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C67000 Bronze vs. Grade 21 Titanium

C67000 bronze belongs to the copper alloys classification, while grade 21 titanium belongs to the titanium 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 C67000 bronze and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Elongation at Break, % 5.6 to 11
9.0 to 17
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 42
51
Shear Strength, MPa 390 to 510
550 to 790
Tensile Strength: Ultimate (UTS), MPa 660 to 880
890 to 1340
Tensile Strength: Yield (Proof), MPa 350 to 540
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 190
410
Maximum Temperature: Mechanical, °C 160
310
Melting Completion (Liquidus), °C 900
1740
Melting Onset (Solidus), °C 850
1690
Specific Heat Capacity, J/kg-K 410
500
Thermal Conductivity, W/m-K 99
7.5
Thermal Expansion, µm/m-K 20
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
60
Density, g/cm3 7.9
5.4
Embodied Carbon, kg CO2/kg material 2.9
32
Embodied Energy, MJ/kg 49
490
Embodied Water, L/kg 350
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 62
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1290
2760 to 5010
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 20
32
Strength to Weight: Axial, points 23 to 31
46 to 69
Strength to Weight: Bending, points 21 to 26
38 to 50
Thermal Diffusivity, mm2/s 30
2.8
Thermal Shock Resistance, points 21 to 29
66 to 100

Alloy Composition

Aluminum (Al), % 3.0 to 6.0
2.5 to 3.5
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 63 to 68
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 2.0 to 4.0
0 to 0.4
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 2.5 to 5.0
0
Molybdenum (Mo), % 0
14 to 16
Niobium (Nb), % 0
2.2 to 3.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.17
Silicon (Si), % 0
0.15 to 0.25
Tin (Sn), % 0 to 0.5
0
Titanium (Ti), % 0
76 to 81.2
Zinc (Zn), % 21.8 to 32.5
0
Residuals, % 0
0 to 0.4

Comparable Variants