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Grade 38 Titanium vs. C69400 Brass

Grade 38 titanium belongs to the titanium alloys classification, while C69400 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 38 titanium and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
17
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
42
Shear Strength, MPa 600
350
Tensile Strength: Ultimate (UTS), MPa 1000
570
Tensile Strength: Yield (Proof), MPa 910
270

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 330
170
Melting Completion (Liquidus), °C 1620
920
Melting Onset (Solidus), °C 1570
820
Specific Heat Capacity, J/kg-K 550
410
Thermal Conductivity, W/m-K 8.0
26
Thermal Expansion, µm/m-K 9.3
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
27
Density, g/cm3 4.5
8.3
Embodied Carbon, kg CO2/kg material 35
2.7
Embodied Energy, MJ/kg 560
44
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 3840
340
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 62
19
Strength to Weight: Bending, points 49
18
Thermal Diffusivity, mm2/s 3.2
7.7
Thermal Shock Resistance, points 72
20

Alloy Composition

Aluminum (Al), % 3.5 to 4.5
0
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
80 to 83
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 1.2 to 1.8
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.2 to 0.3
0
Silicon (Si), % 0
3.5 to 4.5
Titanium (Ti), % 89.9 to 93.1
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
11.5 to 16.5
Residuals, % 0
0 to 0.5