- High strength and lightweight: density only 57% that of steel (4.5g/cm³), specific strength (strength/density) is 2.5 times that of stainless steel.
- Excellent corrosion resistance: 10 times higher than stainless steel in seawater and chloride environments.
- High temperature stability: operating temperature up to 500℃ (α titanium alloy), β titanium alloy can withstand 300℃.
- Biocompatibility: non-toxic, strong affinity with human tissue (standard material for medical implants).
- Machining challenges:
- High cutting force (30% higher than steel).
- Low thermal conductivity (only 1/4 that of steel) can lead to tool wear.
- Low elastic modulus (110GPa) can cause vibration during machining.
- High chemical activity (reacts with tool material at high temperature).
All uploads are secure and confidential.Grade | Tensile strength (MPa) | Yield strength (MPa) | Density (g/cm³) | Hardness (HB) | Main characteristics | Application scenarios |
TA1 (pure titanium) | 350-500 | 280-400 | 4.5 | 110-140 | High corrosion resistance, easy to weld | Chemical equipment, electrode materials |
TA2 (pure titanium) | 450-600 | 380-500 | 4.5 | 120-150 | Higher strength than TA1, good ductility | Ship fittings, heat exchangers |
Ti-6Al-4V | 950-1100 | 850-1000 | 4.43 | 300-340 | α+β type alloy, excellent comprehensive properties | Aerospace structural components, orthopedic implants |
Ti-5Al-2.5Sn | 850-1000 | 750-900 | 4.48 | 280-320 | α type alloy, high temperature resistance | Engine components, spacecraft frames |
Ti-10V-2Fe-3Al | 1300-1450 | 1200-1350 | 4.65 | 360-400 | β type alloy, ultra-high strength | Missile casings, sports equipment |
TC4 (equivalent to Ti-6Al-4V) | 950-1100 | 850-1000 | 4.43 | 300-340 | Chinese grade, good weldability | Medical instruments, high-end bicycle frames |
✔ α titanium alloy: annealing treatment (650-750℃) to eliminate stress.
✔ α+β titanium alloy: solution treatment (950℃ quenching) + aging (500℃) to improve strength.⒉Tool selection:
✔ Rough machining: CBN tools (cutting speed 40-60m/min).
✔ Finishing: TiAlN coated tungsten carbide (cutting speed 20-30m/min).
⒊Machining deformation control:
✔ Use low cutting depth (≤1mm).
✔ Optimize fixture design (reduce cantilever length).
✔ Recommend using water-based cutting fluid (flow rate≥20L/min).
⒋Environmental characteristics:
✔ Titanium material recycling rate is over 90%.
✔ No harmful substances are released during processing.
✔ High strength demand: Ti-10V-2Fe-3Al > Ti-6Al-4V > Ti-5Al-2.5Sn
✔ Machining economy: TA2 (pure titanium) < TC4 < Ti-5Al-2.5Sn
✔ Comprehensive cost: H62 (lowest) < H59 < lead-free brass < C54400 < C17300