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Grade 2 Titanium vs. C84400 Valve Metal

Grade 2 titanium belongs to the titanium alloys classification, while C84400 valve metal belongs to the copper alloys. There are 28 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 2 titanium and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 23
19
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 38
39
Tensile Strength: Ultimate (UTS), MPa 420
230
Tensile Strength: Yield (Proof), MPa 360
110

Thermal Properties

Latent Heat of Fusion, J/g 420
180
Maximum Temperature: Mechanical, °C 320
160
Melting Completion (Liquidus), °C 1660
1000
Melting Onset (Solidus), °C 1610
840
Specific Heat Capacity, J/kg-K 540
370
Thermal Conductivity, W/m-K 22
72
Thermal Expansion, µm/m-K 9.0
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
16
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
29
Density, g/cm3 4.5
8.8
Embodied Carbon, kg CO2/kg material 31
2.8
Embodied Energy, MJ/kg 510
46
Embodied Water, L/kg 110
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
36
Resilience: Unit (Modulus of Resilience), kJ/m3 600
58
Stiffness to Weight: Axial, points 13
6.6
Stiffness to Weight: Bending, points 35
18
Strength to Weight: Axial, points 26
7.2
Strength to Weight: Bending, points 28
9.4
Thermal Diffusivity, mm2/s 8.9
22
Thermal Shock Resistance, points 32
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
78 to 82
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Titanium (Ti), % 98.9 to 100
0
Zinc (Zn), % 0
7.0 to 10
Residuals, % 0
0 to 0.7