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Grade 35 Titanium vs. C68700 Brass

Grade 35 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 35 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 41
41
Tensile Strength: Ultimate (UTS), MPa 1000
390
Tensile Strength: Yield (Proof), MPa 630
140

Thermal Properties

Latent Heat of Fusion, J/g 420
190
Maximum Temperature: Mechanical, °C 320
160
Melting Completion (Liquidus), °C 1630
970
Melting Onset (Solidus), °C 1580
930
Specific Heat Capacity, J/kg-K 550
400
Thermal Conductivity, W/m-K 7.4
100
Thermal Expansion, µm/m-K 9.3
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.1
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
25

Otherwise Unclassified Properties

Base Metal Price, % relative 37
26
Density, g/cm3 4.6
8.3
Embodied Carbon, kg CO2/kg material 33
2.8
Embodied Energy, MJ/kg 530
46
Embodied Water, L/kg 170
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1830
90
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 61
13
Strength to Weight: Bending, points 49
14
Thermal Diffusivity, mm2/s 3.0
30
Thermal Shock Resistance, points 70
13

Alloy Composition

Aluminum (Al), % 4.0 to 5.0
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), % 0.2 to 0.8
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Molybdenum (Mo), % 1.5 to 2.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0.2 to 0.4
0
Titanium (Ti), % 88.4 to 93
0
Vanadium (V), % 1.1 to 2.1
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5