TIMETAL® 75A CP Titanium (ASTM Grade 4)
Subcategory: Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Key Words: UNS R50700
|Component|| Wt. %|
|C||Max 0.08|| |
|Fe||Max 0.5|| |
|H||Max 0.015|| |
|N ||Max 0.05|| |
|O||Max 0.4|| |
|Ti||Min 98.6|| |
Titanium content above is calculated as the remainder and may not reflect the actual range.
Commercially Pure Titanium.
Industry Specifications: USA Aerospace: AMS 4901. Germany Engineering: 3.7065. Germany Aerospace: 3.7064. France: T-60. UK Aerospace Specification BS TA. 6.
Features: The mechanical properties of CP titanium are influenced by small additions of oxygen and iron. By careful control of these additions, the various grades of commercially pure titanium are produced to give properties suited to different applications. TIMETAL 75A is equivalent to ASTM Grade 4. It has the highest strength of the four ASTM commercially pure titanium grades in addition to good ductility and moderate formability. The benefits of the good strength to weight ratio of TIMETAL 75A are retained at moderate temperatures. It has good impact properties at low temperatures. It can be satisfactorily welded, machined, cold worked, hot worked, and cast. It is nonmagnetic.
Typical heat treatment for this alloy: Anneal at 700°C for 1 hour and air cool. Stress Relieve at 500°C for 30 mins and air cool.
Data provided by TIMET.
|Density||4.51 g/cc||0.163 lb/in³|| Typical|
|Tensile Strength, Ultimate||680 MPa||98600 psi|| Typical|
|Tensile Strength, Yield||560 MPa||81200 psi|| Typical 0.2% Proof Stress|
|Elongation at Break||23 %||23 %|| Typical|
|Reduction of Area||46 %||46 %|| Typical|
|Modulus of Elasticity||105 - 120 GPa||15200 - 17400 ksi|| Typical|
|Fatigue Strength||376 MPa||54500 psi|| Smooth, Kt=1|
|Electrical Resistivity||6e-005 ohm-cm||6e-005 ohm-cm|| |
|CTE, linear 20°C||8.6 µm/m-°C||4.78 µin/in-°F|| 20-100°C|
|CTE, linear 250°C||9.5 µm/m-°C||5.28 µin/in-°F|| 20-300°C|
|CTE, linear 500°C||9.7 µm/m-°C||5.39 µin/in-°F|| 20-425°C|
|Thermal Conductivity||16.95 W/m-K||118 BTU-in/hr-ft²-°F|| |
|Maximum Service Temperature, Air||425 °C||797 °F|| Continuous|
|Maximum Service Temperature, Air||540 °C||1000 °F|| Intermittant|
|Beta Transus||950 °C||1740 °F|| |
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