Titanium Grade 12, Annealed
Subcategory: Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Close Analogs: Titanium Grades 1,2,3,4,7,11,and 12 are all considered unalloyed and have similar mechanical properties.
Key Words: UNS R53400; ASTM Grade 12, titanium alloy
Component | Wt. % | | | Mo | 0.3 | | Ni | 0.8 | | Ti | 98.9 | |
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Material Notes: Addition of 0.3% Mo and 0.8% Ni to titanium increases corrosion resistance at a lower cost than Pd (see Ti Grades 7 and 11). Sample was annealed 20 min. at 815°C and 5 min. at 788°C.
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Physical Properties | Metric | English | Comments |
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Density | 4.5 g/cc | 0.163 lb/in³ | |
Mechanical Properties |
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Tensile Strength, Ultimate | 620 MPa | 89900 psi | |
Tensile Strength, Yield | 480 MPa | 69600 psi | |
Elongation at Break | 23 % | 23 % | |
Modulus of Elasticity | 103 GPa | 14900 ksi | in tension. |
Notched Tensile Strength | 620 MPa | 89900 psi | Kt (stress concentration factor) = 5.3 |
Poisson's Ratio | 0.28 | 0.28 | |
Fatigue Strength | 140 MPa | 20300 psi | at 1E+7 cycles. Kt (stress concentration factor) = 3.5 |
Fatigue Strength | 310 MPa | 45000 psi | 1E+7 cycles, Unnotched |
Shear Modulus | 41 GPa | 5950 ksi | |
Electrical Properties |
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Electrical Resistivity | 5.2e-005 ohm-cm | 5.2e-005 ohm-cm | |
Thermal Properties |
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Heat of Fusion | 325 J/g | 140 BTU/lb | High Purity Ti. |
CTE, linear 20°C | 9.9 µm/m-°C | 5.5 µin/in-°F | 20-93°C |
CTE, linear 250°C | 9.5 µm/m-°C | 5.28 µin/in-°F | Unspecified heat treatment. Average over the range 0-315ºC |
Specific Heat Capacity | 0.555 J/g-°C | 0.133 BTU/lb-°F | |
Thermal Conductivity | 19 W/m-K | 132 BTU-in/hr-ft²-°F | |
Melting Point | Max 1660 °C | Max 3020 °F | Liquidus |
Liquidus | 1660 °C | 3020 °F | |
Beta Transus | 890 °C | 1630 °F | |
Optical Properties |
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Emissivity (0-1) | 0.3 | 0.3 | High purity Ti at 710°C |
Reflection Coefficient, Visible (0-1) | 0.56 | 0.56 | High purity Ti; visible light. |
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