Product Introduction
Gr.9 Titanium Alloy Plate is a near-α titanium alloy with a nominal composition of Ti-3Al-2.5V. At room temperature and high temperature, its strength is 20%~50% higher than that of pure titanium, and the welding performance and cold forming performance are better than that of Gr.5 alloy, and Gr.9 titanium alloy plate is generally used in the annealed state, but also can be used in the state of cold working and stress relief annealing, and the maximum working temperature is about 315°C.
Product Specifications
Physical
The density of Gr.9 titanium alloy plate is ρ=4.47g/cm3.
The specific heat capacity of Gr.9 titanium alloy plate at room temperature is 858J/KG·°C.
Gr.9 titanium alloy plate is non-magnetic.
Thermal conductivity of Gr.9 titanium alloy plates
|
θ/℃ |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
|
λ/(W/(m·℃)) |
11.7 |
13.0 |
13.4 |
14.2 |
14.7 |
16.3 |
17.6 |
Linear expansion coefficient of Gr.9 titanium alloy plate
|
θ/℃ |
100 |
200 |
300 |
400 |
500 |
600 |
|
a1/10-6℃-1 |
8.77 |
9.56 |
9.66 |
9.70 |
9.65 |
9.68 |
Chemical properties
Oxidation resistance: Gr.9 titanium alloy plate oxidation temperature can reach 315°C.
Corrosion resistance: Gr.9 titanium alloy plates generally have corrosion resistance similar to those of industrial pure titanium.
Mechanical properties
Gr.9 Properties specified in the technical standard for titanium alloy plates
| Technical Standards | Product type | Product specifications, mm | Status | Sampling direction | Room temperature tensile properties | ||
|
σb /MPa |
σp0.2/ MPa |
δ5/% |
|||||
|
GB/T3621-2007 |
Sheet material |
0.5~2.0 2.0~4.0 4.0~10.0 |
Annealing |
T |
590~735 |
_ |
25 20 15 |
|
Q/XB 153-1996 |
Sheet material |
0.6~2.0 |
Annealing |
T |
≥620 |
≥518 |
15 |
Other technical standards for Gr.9 Titanium Alloy Plate
ASTM B265-2015 《Standard Specification for Titanium and Titanium Alloy Strips and Plates》
MILT-9046G 《Titanium and Titanium Alloy Sheets, Strips and Plates》
Low temperature tensile properties of Gr.9 Titanium Alloy Plate
| Variety | Diameter, mm | Status |
θ/℃ |
Rm/MPa |
Rp0.2/MPa |
A25/% |
| Annealing |
1.2 |
Annealing |
20 20 -195 -253 -268 |
645 675 1144 1220 1310 |
540 - - - - |
27 18 20 2 3 |
High temperature tensile properties of Gr.9 Titanium Alloy Plate
| Variety | Sheet material | ||
| Status | 650℃, 0.5h, air cooling | ||
|
θ/℃ |
Rm/MPa |
Rp0.2/MPa |
A/% |
|
100 |
660 |
521 |
20.9 |
|
150 |
592 |
479 |
24.0 |
|
200 |
598 |
481 |
17.4 |
|
300 |
542 |
427 |
17.4 |
|
400 |
503 |
-- |
16.0 |
|
470 |
424 |
-- |
27.0 |
|
500 |
400 |
-- |
26.9 |
Analysis of electrical properties of Gr.9 titanium alloy plate
Studies have shown that the resistivity of Gr.9 titanium alloy plate varies less with temperature, which makes it maintain good conductivity in both high and low temperature environments. For example, in low-temperature environments, its conductivity does not decrease significantly due to temperature drops, but increases slightly in some specific temperature ranges.
Product Features and Applications
Plate size range of Gr.9 Titanium Alloy Plate
Thickness: hot-rolled plate 4.75–101.6 mm, cold-rolled plate up to 0.025 mm.
Width: ≥ 254 mm (plate) or ≥ 610 mm (sheet), industrial supply width up to 2500 mm.
Formability
Bending and Stretching: Although there is no clear forming limit data, its cold workability is better than that of Gr.5 (Ti-6Al-4V) and is suitable for complex sheet metal parts.
Welding process: GTAW (argon arc welding) is recommended, the filling material needs to match the base metal (Ti-3Al-2.5V welding wire), and the inert gas is strictly protected.
Applications
It is widely used in aircraft turbines, engine components, aircraft structural components, aerospace fasteners, high-performance automation parts, marine applications, sports equipment, etc. In particular, aircraft honeycomb structures can also be used as other parts that require strength, cold forming, and welded structures.
Product details
chemical composition of Gr.9 Titanium Alloy Plate
|
Element Content(wt%) |
Mechanical Properties |
|||||||
|
N,max |
C,max |
H,max |
Fe,max |
O,max |
Others |
Strength Of Extension |
Ductility |
|
|
Mpa,min |
%,min |
|||||||
|
Gr.9 |
0.03 |
0.08 |
0.015 |
0.15 |
0.25 |
AL:2.5-3.5 V:2.0-3.0 |
620 |
15 |
Processing technology
The processing process of Gr9 titanium alloy plate has a significant impact on its material properties. For example, annealing temperature has a significant impact on the microstructure and mechanical properties of Gr9 titanium alloy plates. The results showed that when the annealing temperature was about 650°C, the microstructure changed significantly, the content of primary α phase decreased, and the β phase and secondary α phase gradually grew. As the annealing temperature increased to 700°C~800°C, the microstructure did not change much, but the tensile strength and yield strength decreased slightly in general. The annealing temperature has a great effect on the shrinkage rate of the section, which increases with the increase of temperature, while the effect on the elongation is small, and it is basically stable. In terms of hardness, the hardness is significantly reduced after annealing at 650°C.
Packaging & After-sales
Basic packaging: Gr.9 titanium alloy plate should be wrapped with moisture-proof paper and plastic film for boards with a thickness of more than 4mm, and then packed in wooden boxes or iron sheets; while boards with a thickness of less than 4mm should be separated with moisture-proof paper and wrapped with plastic film before being packed into wooden boxes or tin boxes.
After-sales service: Each batch of products comes with a quality certificate of Gr.9 titanium alloy plate, indicating product information, inspection results, etc., to ensure product quality and traceability.
Provide customized services: Support customized packaging solutions according to customer needs, such as special markings, protective packaging. Support for technical services, such as advice on product application, processing, installation, etc.
Note: The specific product parameters and packaging schemes need to be confirmed with the supplier according to the procurement.
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