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C69400 Brass vs. Grade 18 Titanium

C69400 brass belongs to the copper alloys classification, while grade 18 titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C69400 brass and the bottom bar is grade 18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
11 to 17
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
40
Shear Strength, MPa 350
420 to 590
Tensile Strength: Ultimate (UTS), MPa 570
690 to 980
Tensile Strength: Yield (Proof), MPa 270
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 170
330
Melting Completion (Liquidus), °C 920
1640
Melting Onset (Solidus), °C 820
1590
Specific Heat Capacity, J/kg-K 410
550
Thermal Conductivity, W/m-K 26
8.3
Thermal Expansion, µm/m-K 18
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.7

Otherwise Unclassified Properties

Density, g/cm3 8.3
4.5
Embodied Carbon, kg CO2/kg material 2.7
41
Embodied Energy, MJ/kg 44
670
Embodied Water, L/kg 300
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 340
1380 to 3110
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
35
Strength to Weight: Axial, points 19
43 to 61
Strength to Weight: Bending, points 18
39 to 49
Thermal Diffusivity, mm2/s 7.7
3.4
Thermal Shock Resistance, points 20
47 to 67

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 80 to 83
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.25
Lead (Pb), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 3.5 to 4.5
0
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0
0 to 0.4