Strong Point
- This is suitable for brazing of pure titanium and titanium alloy.
- It is possible to braze pure titanium at lower temperature than βtransus temperature.
- This brazing alloys has the same corrosion resistance as titanium because it is powder alloy which mainly consists of titanium and zirconium.
Table of Titanium based brazing alloys
| TYPE | AWS standard（AWS） | Chemical Compositions (Wt%) | Melting Range（℃） | Specific Gravity | |||
|---|---|---|---|---|---|---|---|
| Ti(%) | Zr(%) | Cu(%) | Ni(%) | ||||
| TB-1510 | BTi-3 | 37.5 | 37.5 | 15 | 10 | 842 | 6.2-6.5 |
| TB-2020 | BTi-5 | 40 | 20 | 20 | 20 | 820-880 | |
| TB-2500 | – | 37.5 | 37.5 | 25 | – | 825 | |
| TB-5000 | – | 25 | 25 | 50 | – | 810-860 | |
Test of corrosion resistance(720hours dipping)
This shows the same corrosion resistance as based metals.
- We have ２types of Titanium based brazing alloys Paste and powder
- It is used in vacuum or in the non-active gas atmosphere
- The joint strength changes according to the shape of joint or the condition of brazing.
Example of application
- Medical part
- Parts for aircraft
- Parts for semiconductor device
- Parts for automobile for competition
- Parts for cutting tool
- Mug as consumer product
- etc.
Parts for automobile for competition
Medical parts
Parts of heat exchanger (Cross section)