Aerospace titanium tubes are widely used in aerospace due to their many valuable properties:
A. The specific strength of titanium is high, which is beneficial to the lightweight of the aircraft. The density of titanium is about 40% lighter than that of steel, and its strength is comparable to that of steel. The specific strength of titanium is better than that of general aviation titanium.
B. The heat resistance of titanium is quite good, far superior to that of aluminum and magnesium. The melting point of titanium is 1668 degrees Celsius, which is higher than that of iron, about 1000 degrees Celsius higher than that of aluminum and magnesium, and the recrystallization temperature is as high as 600 degrees Celsius. Therefore, its operating temperature is higher, and it is suitable for parts with higher engine and airframe temperatures. Titanium is also resistant to low temperature and is not easy to produce low temperature brittleness. Titanium is used in a wide range of temperatures.
C. Titanium has very good corrosion resistance, usually does not require special surface protection measures, and is easy to maintain.
D. Titanium has good processability and can meet the processing and forming requirements of complex and large components such as aircraft and engines.
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Grade | Alloy Composition | Type | Key Characteristics | Typical Aerospace Applications |
Grade 9 (Ti-3Al-2.5V) | Titanium + 3% Al + 2.5% V | Alpha + Beta alloy | Moderate strength, excellent weldability and formability | Hydraulic tubing, fuel lines, structural tubing |
Grade 5 (Ti-6Al-4V) | Titanium + 6% Al + 4% V | Alpha + Beta alloy | High strength, heat resistance, moderate weldability | Aircraft structures, landing gear, engine parts |
Grade 2 (Commercially Pure Ti) | Unalloyed Titanium | CP Titanium | Excellent corrosion resistance, good formability, low strength | Ventilation lines, low-pressure tubing |
Grade 23 (Ti-6Al-4V ELI) | Low oxygen Ti-6Al-4V | Alpha + Beta alloy | Improved ductility and fracture toughness | High-performance hydraulic tubing, medical-aero crossover parts |
Ti-6Al-2Sn-4Zr-2Mo (Ti 6242) | Titanium + 6% Al + 2% Sn + 4% Zr + 2% Mo | Alpha + Beta alloy | High temperature strength | Jet engine tubing and hot-section components |
Ti-6Al-2Sn-4Zr-6Mo (Ti 6246) | Titanium + 6% Al + 2% Sn + 4% Zr + 6% Mo | Alpha + Beta alloy | Very high strength and heat resistance | Engine tubing, fire zones |
Ti-15V-3Cr-3Sn-3Al | Titanium + 15% V + 3% Cr + 3% Sn + 3% Al | Beta alloy | Excellent cold-formability and weldability | Hydraulic/fuel tubing, cold-formed structural parts |
Using the blanking method with different deformation amounts, the aerospace titanium tube blank is rolled into a tube with a total deformation of 70% through two or three passes. 800 ℃ * 1h vacuum annealing between passes. The cooling method is to cool the furnace to 500°C, then air-cool to room temperature, and observe the changes in structure and properties.
The conclusion is that in the case of small deformation billets, the wall thickness deviation is small, and the surface roughness gradually decreases, while for large deformation billets, the wall thickness deviation is large, which will affect the wall thickness deviation of the pipe obtained by the subsequent pass. . Under the condition of the same total deformation, the more rolling passes, the greater the elongation and hardness of the pipe, and the higher the strength. So comprehensive.
N |
C |
H |
Fe |
O |
Al |
V |
Pa |
Mo |
Ni |
Ti |
|
Gr 1 |
0.03 |
0.08 |
0.015 |
0.20 |
0.18 |
/ |
/ |
/ |
/ |
/ |
bal |
Gr 2 |
0.03 |
0.08 |
0.015 |
0.30 |
0.25 |
/ |
/ |
/ |
/ |
/ |
bal |
Gr 5 |
0.05 |
0.08 |
0.015 |
0.40 |
0.20 |
5.5~6.75 |
3.5~4.5 |
/ |
/ |
/ |
bal |
Out diameter(mm) |
Allowable deviation(mm) |
Out diameter(mm) |
Allowable deviation(mm) |
3~10 |
±0.15 |
>50~80 |
±0.65 |
>10~30 |
±0.30 |
>80~100 |
±0.75 |
>30~50 |
±0.50 |
>100 |
±0.85 |
Outer Diameter (mm) |
Curvature (mm/m, not more than) |
≤30 |
3 |
>30~110 |
4 |
Tensile Strength(Mpa) |
Yield Strength0.2%(Mpa) |
Elongation(%) |
460 |
325 |
25 |
Model Number |
Status |
Tensile Strength /Mpa |
Stretch of Specified Residual Force/Mpa |
Elongation/% (L0=50mm) |
GR1 |
M |
280-420 |
more than 170 |
more than 24 |
GR2 |
370-530 |
more than 250 |
more than 20 |
|
GR3 |
440-620 |
more than 320 |
more than 18 |
|
GR7 |
370-530 |
more than 250 |
more than 20 |
|
GR12 |
more than 440 |
__ |
more than 18 |
Q: What does your company do?
A: We are a scientific and technological innovation enterprise, mainly producing high-end non-ferrous metal materials. The main products involve titanium and titanium alloy rods, wires, plates, pipes, flanges and other titanium industry chain products and other rare and precious metal products.
Q: What are the advantages of your company?
A:
(1): High quality and reasonable price.
(2): Rich experience in after-sales service.
(3): Every process will be inspected by the responsible QC to ensure the quality of every product.
(4): Professional packaging team to ensure the safety of each package.
(5): Trial order can be finished within one week.
(6): Samples are available upon your request.
Q: What about your price?
A: Due to our fine management and cost control, our price is very given. If you are interested, please feel free to contact us.
Q: How long is your delivery time?
A: Different products have different lead times. Usually the delivery time is within 7 to 15 days after we receive your deposit.
The inner packing of the zirconium melting crucible is vacuum packing plus foam bag; the outer packing: with plywood box;
We ship worldwide by EMS, DHL, UPS, FedEx, TNT, etc.;
Products will be boxed, bundled or strapped for safe delivery to their destination.
Baoji Freelong New Material Technology Development Co., Ltd loated in Baoji City--China's Titanium Valley,we are mainly doing Zirconium,Titanium,Nickel,Niobium,Tantalum etc metal material and other alloy's produce,OEM and Sales.and also exporting the goods what we make. we have a lot of trustful clients and partner.and also we were authority by some firms.At present,we were build our relationship with Australia,Korea,German,US,UK,Malaysia,AZ,Middle East,Taiwan,Etc. Our company always take the quality and service as our responsibility,We always get close even match the quality what our customer wanted and as for quality,we never say no and no reason for quality failure.
Our Factory
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Production Equipment
WhatsApp&Wechat: 86 13571190943
E-mail: jenny@bjfreelong.com
Address: No.188. Gaoxin Ave, Baoji City, Shannxi, China.
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