TC4 titanium alloy material. Ti-6Al-4V(TC4)GR5
TC4 titanium plate 135 titanium rod and 2435 titanium tube 1833
Ti-6Al-4V(TC4) has the advantages of both α and β titanium alloys, namely, good plasticity, good thermal strength (long-term working at 400℃), strong seawater corrosion resistance, simple production process, weldability, cold and hot forming, quenching and aging treatment. It is mainly used for aircraft compressor discs and blades, pressure-resistant shells of ships, large-size forgings, die forgings and so on.
Ti-6Al-4V(TC4) titanium alloy is a new structural material with excellent comprehensive properties, such as low density (4.5gcm-3), high specific strength and specific fracture toughness, good fatigue strength and crack propagation resistance, good low temperature toughness and excellent corrosion resistance. The highest working temperature of some titanium alloys is 550℃, which is expected to reach 700℃. Therefore, it has been widely used and developed rapidly in aviation, aerospace, chemical industry, shipbuilding and other industrial sectors.
Chemical group of alloy brands
TC4？ 5.5-6.83.5-4.5
Forging process project
Heating temperature/℃? Initial forging temperature/℃? Final forging temperature/℃? Cooling mode
Yuanbao? 1 170~ 1200 1 140~ 1 170 900? Pit cooling or sand cooling
Blank? 1 160~ 1 180 1 120~ 1 150 850? Pit cooling or sand cooling
First preheating in quenching process
Second preheating quenching temperature℃? Holding time s/mm? Hardness hrc of cooling medium
550℃ heat preservation? 850℃ heat preservation? 1080 10 20~25? Oil? 45.5~47
Tempering performance Tempering temperature (℃)
100 200 300 400 450 500 550 600 650 700
Hardness? (HRC) 48.0 48.0 48.5 46.5 47.5 47.0 48.5 44.5 28.5 Characteristic Application
Ti-6Al-4V(TC4) also has good low temperature performance. It still has good toughness below-196℃, and is used to manufacture low-temperature and high-pressure containers, such as liquid hydrogen fuel tanks for rockets and missiles.