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C68800 Brass vs. Grade Ti-Pd18 Titanium

C68800 brass belongs to the copper alloys classification, while grade Ti-Pd18 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C68800 brass and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 2.0 to 36
17
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 570 to 890
710
Tensile Strength: Yield (Proof), MPa 390 to 790
540

Thermal Properties

Latent Heat of Fusion, J/g 190
410
Maximum Temperature: Mechanical, °C 160
330
Melting Completion (Liquidus), °C 960
1640
Melting Onset (Solidus), °C 950
1590
Specific Heat Capacity, J/kg-K 400
550
Thermal Conductivity, W/m-K 40
8.2
Thermal Expansion, µm/m-K 19
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 20
2.7

Otherwise Unclassified Properties

Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 2.8
41
Embodied Energy, MJ/kg 48
670
Embodied Water, L/kg 350
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 2860
1380
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 19
35
Strength to Weight: Axial, points 19 to 30
44
Strength to Weight: Bending, points 19 to 25
39
Thermal Diffusivity, mm2/s 12
3.3
Thermal Shock Resistance, points 19 to 30
52

Alloy Composition

Aluminum (Al), % 3.0 to 3.8
2.5 to 3.5
Carbon (C), % 0
0 to 0.1
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.25
Lead (Pb), % 0 to 0.050
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Titanium (Ti), % 0
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 21.3 to 24.1
0
Residuals, % 0
0 to 0.4