1. Introduce
– The beginning of alloyed titanium other than pure titanium
– Resistant to salt water, marine atmosphere, and various corrosive environments below 300
– Maintains excellent ductility and toughness at low temperatures of -196~253℃
– UNS R56400
* Ti CP vs Ti-6-4
– CP : α / β phase pure titanium
- Allotropic transformation based on 882℃, α phase exists below 882℃ and β phase exists above 882℃
- Mechanical properties of titanium change depending on the amount of α phase and β phase
– Ti-6-4 : α+β phase alloy titanium
- Strength, machinability, weldability, and ability to withstand moderately high temperatures
* UNS
- Abbreviation for Unified Numbering Systems for Metals and Alloys
- Unified unique numbering system for metals and alloys
- A representative number that is compatible with metals and alloys defined in many material-related codes such as ASTM, AISI, ASME, AWS, etc.
* R : Reactive and Refractory Metals and Alloys
* UNS R56400 : 5XXXX : Titanium
2. Property
– Excellent strength, specific strength, toughness, corrosion resistance, corrosion resistance
– Al, V alloy improves tensile strength of titanium by 2 times compared to pure titanium
[Ti Gr.5(6Al4V) Chemical Composition (%)]
| Ti | N | C | H | Fe |
|---|---|---|---|---|
| 87.72 ~ 91.00 | Max. 0.03 | Max. 0.08 | Max. 0.02 | Max. 0.40 |
| O | Al | V | Others | |
|---|---|---|---|---|
| Max. 0.20 | 5.50 ~ 6.75 | 3.50 ~ 4.50 | Max. 0.30 |
[Ti Gr.5(6Al4V) Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | Hardness HV typical |
|---|---|---|---|
| Min. 895 | Min. 828 | Min. 10 | 310 ~ 350 |
[Ti Gr.5(6Al4V) Physical Properties]
| Density (g/㎤) | Melting Range (℃) | Beta transus temperature (℃) | Specific Heat (0-100℃), J/kg*℃ |
|---|---|---|---|
| 4.43 | 1650 | 980 | 570 |
3. Standard & SpecifIcation
– Specification : UNS R56400
| SAE | AMS 4928, 4920, 4911, 4906, 4905, 4954, 4935, 4934, 4930, 4967 |
| ASTM | B265, B381 |
| GE | C50TF12 |
| Product Form | ASTM | ASME | SAE | BS | MIL-DTL |
|---|---|---|---|---|---|
| Bar, Rod | B348, F67, F136 | – | – | – | – |
| Sheet, Plate, Strip | B168, 906 | SB168, 906 | AMS 5540 | 3072NA14, 3073NA14 | 23228 |
4. Available Form
– Bar, Rod, Billet
– Sheet, Plate, Strip
– Wire, Coil
– Forgings
– Castings
5. Application & Product
– Aerospace, Medical, Chemical
| Application | Product |
|---|---|
| Aerospace | Blades, Disks, Rings, Fasteners, Cases, Hubs, Aero engine fans |
| Medical | Implants, Artificial joints |
| Chemical | Cryogenic vessels, Storage tanks |
(1) Turbine Blades / (2) Rings / (3) Implants / (4) Cryogenic Vessels
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