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Ti-Grade 9

titanium grade 9 tube

Overview of Titanium Grade 9 alloy

Ti Grade 9 Titanium alloy is a near - α Titanium alloy. The chemical composition is Ti-3Al-2.5V.
It was developed as a tube material that can be used in cold processing and is 20 to 50 percent stronger than pure Titanium at room temperature and high temperature.

titanium grade 9 foil

Ti Gr.9 Foil widely used for aircraft honeycomb. The seamless tubes produced by Ti Grade 9 have a wide range of applications in aircraft and engine hydraulic and fuel piping systems.

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    • Properties of Ti Grade 9 alloy

    Ti Grade 9 Titanium alloy thermal conductivity
    θ/℃ 100 200 300 400 500 600 700 800
    λ/W·m-1·K-1 11.7 13.0 13.4 14.2 14.7 16.3 17.6 19.3
    Ti-3Al-2.5V alloy linear expansion coefficient
    θ/℃ 100 200 300 400 500 600 700 800
    α/10-6K-1 8.77 9.56 9.66 9.70 9.65 9.68 9.84 9.73
    Ti Gr.9 Titanium alloy resistivity
    θ/℃ 20 100 200 300 400 500 600 700 800
    ρ/μΩ·m 1.25 1.31 1.42 1.52 1.60 1.66 1.71 1.74 1.74
    Ti Gr.9 Titanium alloy fatigue limit of rotating bending at room temperature
    Form d/mm Status Sample direction σb/MPa σp0.2/MPa Kt R  N/week σD/MPa
    rod 17 750℃, 1h, cool air L 691 584 1 -1 107 343
    3 -1 107 176
    Ti Gr.9 Titanium alloy tube axial loading fatigue limit
    Form d or δ/mm Status Sample direction θ/℃ Kt R  f N σD/MPa
    tube 9.5X0.7 annealed L 20 1 -1 30 107 320
    Ti-3Al-2.5V dynamic modulus of elasticity at different temperatures
    Form Status d or δ/mm E/GPa
    20℃ 100℃ 200℃ 300℃ 400℃ 500℃
    tube 650℃, 30min, cool furnace 6X0.6 96.3 - - - - -
    10X0.75 99.0 - - - - -
    12X0.9 99.0 - - - - -
    sheet 650℃, 30min, cool furnace 1.0 106.0 100.5 92.6 85.6 79.3 74.2
    Titanium Grade 9 high temperature creep properties
    Form Status θ/℃ σ1.0/1000/MPa
    tube annealed 250 400