Ti-6Al-4V

Scope of supply for Aviation Group

Forgings, round rods, steel plates, rings, seamless pipes, steel plates/steel belts, capillaries, wire welding materials, welcome to inquire!

Titanium forgings, custom titanium rods per drawings. Φ(8-400) ×L≤5000mm (rolled rods, forged rods)

Titanium plate/belt (0.3-60.0) × (400-1000) × (1000-3500) mm (cold rolled plate, hot rolled plate)

Titanium tube Φ(3-210) × (0.2-10.0) ×L (rolled pipes, extruded pipes)

Titanium ring Outer diameter φ(100-1200) × inner diameter Φ(100-1000) × height (20-800) mm

Titanium round cake Φ(150-1200) × (20-800) mm

Titanium wire Φ(0.1-7.0) ×L

1. Introduction to Ti-6Al-4V materials

Ti-6Al-4V (TC4) belongs to (α+β) type titanium alloy, composed of titanium matrix with aluminum and vanadium alloying elements. It features low density, high specific strength, excellent corrosion resistance and forming performance with balanced comprehensive mechanical properties, serving as ideal structural material for aerospace. Its tensile strength σb=1.012GPa, density=4.51g/cm³, specific strength σb/g=23.5, far higher than alloy steel (less than 18).

2. Ti-6Al-4V chemical composition

3. Ti-6Al-4V physical properties

Density: 4.51 g/cm³, service temperature range: -100~550℃

4. Technical standards of Ti-6Al-4V materials

GB/T3620.1-2016 Titanium and Titanium Alloy Grades and Chemical Compositions

GB/T 3621-2007 ASTM/B265 Titanium and Titanium Alloy Sheet

GB/T2965 -2007 ASTM/B348 Titanium and Titanium Alloy Rod Material

GB/T 3624-2010 ASTM/B337 Titanium and Titanium Alloy Seamless Tube

GB/T16598-2013 ASTM/B381 Titanium & titanium alloy tubes for heat exchanger and condenser

GB/T13810-1997 ASTM/F136 Titanium and titanium alloy processing materials for surgical implants

GB/T3623-2007 ASTM/B863 titanium and titanium alloy wire

ASTM/B265 Titanium and Titanium Alloy Strip & Foil

Ti-6Al-4V heat treatment performance

When Ti-6Al-4V is heated to 1020℃, the high-temperature microstructure is single-phase solid solution β. Different cooling methods (water quenching, air cooling, furnace cooling) form distinct microstructures: water quenched structure consists of martensite α’+β phase; air cooled structure contains acicular α+β phase and original β grain boundary phase; furnace cooled structure forms strip α+β phase with original β grain boundaries.

Similarly, heating to 950℃ and 850℃ followed by different cooling rates yields different microstructures. At 950℃, water quenching produces primary equiaxed α + α’+β phase; air cooling forms primary equiaxed α + acicular β phase; furnace cooling gains primary equiaxed α with grain boundary precipitates. At 850℃, water quenching obtains primary equiaxed α + metastable β phase; air cooling gets primary equiaxed α + transformed β phase.

Room-temperature mechanical properties after heating Ti-6Al-4V to 1020℃, 950℃, 850℃ with different cooling rates are shown below:

5. Ti-6Al-4V application field

1. Aircraft compressor discs & blades, marine pressure-resistant shells, large forgings, die forgings
2. Rocket, missile and aircraft structural parts including fuselage frames, skins, engine components and beams
3. Seawater corrosion resistant pipeline systems, valves and pumps
4. Power plant condensers, petroleum refining equipment, seawater desalination devices and environmental pollution control equipment
5. Chemical heat exchangers, pump bodies and distillation towers
6. Medical device manufacturing