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Grade 29 Titanium vs. C68700 Brass

Grade 29 titanium belongs to the titanium alloys classification, while C68700 brass belongs to the copper alloys. There are 26 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 29 titanium and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 930 to 940
390
Tensile Strength: Yield (Proof), MPa 850 to 870
140

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 340
160
Melting Completion (Liquidus), °C 1610
970
Melting Onset (Solidus), °C 1560
930
Specific Heat Capacity, J/kg-K 560
400
Thermal Conductivity, W/m-K 7.3
100
Thermal Expansion, µm/m-K 9.3
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
25

Otherwise Unclassified Properties

Base Metal Price, % relative 36
26
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 39
2.8
Embodied Energy, MJ/kg 640
46
Embodied Water, L/kg 410
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 3420 to 3540
90
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 58 to 59
13
Strength to Weight: Bending, points 47 to 48
14
Thermal Diffusivity, mm2/s 2.9
30
Thermal Shock Resistance, points 68 to 69
13

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
76 to 79
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.13
0
Ruthenium (Ru), % 0.080 to 0.14
0
Titanium (Ti), % 88 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5