PT-7M (ПТ-7М)
PT-7M Titanium Alloy: Advanced Solutions for High-Performance Applications
PT-7M Titanium(ПТ-7М) is a near-alpha titanium alloy developed under Russian GOST standards. It contains approximately 2% aluminum and 2–3% zirconium, with trace amounts of iron, carbon, silicon, nitrogen, oxygen, and hydrogen. The alloy’s microstructure is primarily alpha titanium with excellent ductility, weldability, and corrosion resistance, making it ideal for thin-walled and welded structures.It exhibits moderate strength (≈ 480–680 MPa), high elongation (15–30%), and low density (4.49 g/cm³). PT-7M is easily deformable both at room and elevated temperatures, and annealing in the α-region maintains its mechanical balance. The alloy resists corrosion in marine, chemical, and high-temperature aqueous environments due to the stable TiO₂ oxide film it forms.
What is PT-7M Titanium Alloy?
PT-7M Titanium (also known as Ti-2.2Al-2.7Zr) is a titanium alloy known for its superior strength, weldability, and corrosion resistance. This alloy contains a combination of titanium, aluminum, and zirconium, giving it exceptional properties that make it suitable for a wide range of industrial applications.
Typical applications include chemical apparatus, marine structures, and components in nuclear or heat-exchange systems. However, it is not suitable for high-strength load-bearing parts and must be protected from hydrogen embrittlement. Overall, PT-7M combines light weight, formability, and corrosion resistance, prioritizing durability over maximum strength.
Characteristics of the material PT-7M
| Brand : | PT-7M |
| Classification : | Titanium wrought alloy |
| Application: | pipes and other thin-walled welded parts;Used in parts for the manufacture of which high technological efficiency is required during cold stamping; good corrosion resistance; pseudo α structure class |
| Foreign analogues: | No data |
Chemical composition in % of PT-3V material
GOST -19807 - 91
| Fe | C | Si | N | You | Al | Zr | O | H | Impurities |
|---|---|---|---|---|---|---|---|---|---|
| up to 0.25 | up to 0.1 | up to 0.12 | up to 0.04 | 93.69 - 95.9 | 1.8 - 2.5 | 2 - 3 | up to 0.15 | up to 0.006 | other 0.3 |
Note: Ti is the basis; Ti percentage is approximate.
Technological properties of the PT-7M material.
| Weldability: | without restrictions. |
Mechanical properties at T=20 o C of material PT-7M.
| Assortment | Size | For example. | σin | σT | δ5 | ψ | KCU | Thermal processing |
|---|---|---|---|---|---|---|---|---|
| - | mm | - | MPa | MPa | % | % | kJ/m² | - |
| Sheet | 1-2 | 500-650 | 450-600 | 30 | 1000 | |||
| Rod | 480-680 | 380-550 | 15-25 | 40 | 900 |
Physical properties of the material PT-7M.
| T | E 10-5 | α 106 | λ | ρ | C | R 109 |
|---|---|---|---|---|---|---|
| Haill | MPa | 1/Grad | W/(m deg) | kg/ m3 | J/(kg deg) | Ohm m |
| 20 | 1.12 | 4490 | 1080 | |||
| 100 | 8.8 | 9.3 | 1270 | |||
| 200 | 8.9 | 10.5 | 0.625 | 1400 | ||
| 300 | 9.2 | 11.9 | 0.659 | 1520 | ||
| 400 | 9.4 | 13.3 | 0.69 |
Key Characteristics of PT-7M Titanium
- Corrosion Resistance: PT-7M Titanium offers exceptional corrosion resistance, particularly in aggressive environments like seawater, acidic solutions, and oxidizing conditions. Its resistance to corrosion ensures long-lasting performance in marine, chemical, and aerospace industries.
- Strength and Durability: PT-7M Titanium provides high tensile strength and yield strength, making it the ideal choice for critical components that are exposed to high-stress environments. Its strength and durability make it perfect for aerospace and military applications where performance and reliability are crucial.
- High Thermal Stability: PT-7M performs exceptionally well under elevated temperatures, maintaining its mechanical properties even in extreme conditions. This makes it an excellent material for applications in heat exchangers, nuclear power systems, and other industries that require materials to withstand high heat without degrading.
- Weldability: PT-7M Titanium is known for its superior weldability, allowing it to be easily welded without compromising its strength or corrosion resistance. This ensures ease of fabrication for complex parts and components, making it highly suitable for customized designs in aerospace and chemical processing industries.
- Fatigue Resistance: PT-7M Titanium exhibits outstanding fatigue resistance, ensuring that components subjected to repeated or cyclic loading maintain their integrity over time. This property is essential for components in industries like aviation, automotive, and industrial machinery.
Applications of PT-7M Titanium Alloy
The applications of PT-7M extend across industries that demand high-performance materials for corrosive environments and high-stress situations.
Industries Using PT-7M Titanium:
- Aerospace: PT-7M is used in aircraft components, rocket engines, and satellite parts, where strength and lightweight properties are critical.
- Nuclear Power: It is widely used in nuclear reactors, heat exchangers, and cooling systems due to its ability to resist radiation and high temperatures.
- Chemical Processing: PT-7M is used in piping systems, valves, and tanks for handling aggressive chemicals.
- Marine Engineering: PT-7M is ideal for marine-grade equipment due to its resistance to seawater corrosion and high strength.
Why Choose Russian Metals as Your PT-7M Titanium Supplier?
As a leading industrial-grade PT-7M titanium supplier, Russian Metals ensures the highest quality of titanium products, offering tailored solutions for your industrial needs. We pride ourselves on providing PT-7M titanium with exceptional quality, on-time delivery, and competitive pricing.
Why Russian Metals?
- Top Quality Assurance: Our PT-7M titanium products meet international quality standards and are thoroughly tested for performance and reliability.
- Customization: We provide custom-sized titanium products, ensuring a perfect fit for your specific applications.
- Global Shipping: We cater to clients worldwide, with a robust logistics network ensuring timely delivery to your location.
Contact Russian Metals for PT-7M Titanium Alloy Solutions
If you are looking for PT-7M titanium sheets, tubes, bars, or forgings, Russian Metals is your trusted supplier. Contact us today to discuss your requirements, receive expert advice, and get a quote for your PT-7M titanium needs.