VT25U (ВТ25У)
VT25U Titanium Alloy: High-Strength Material for Aerospace and Industrial Applications
VT25U Titanium (ВТ25У) is a high-strength, heat-treatable α+β titanium alloy known for its performance in high-stress environments. It is used in aerospace, defense, marine, and high-performance industrial applications where strength, corrosion resistance, and temperature stability are required.
Microstructure & Processing of VT25U
VT25U belongs to the α+β class, so its final properties are strongly influenced by thermomechanical processing (hot working) and heat treatment steps such as solution treatment and aging. These processes help tune the α/β phase balance to achieve an optimized strength-to-ductility combination.
Due to alloying additions (such as Mo, W, and Zr), VT25U typically shows strong hardenability and improved elevated-temperature stability, which is valuable for thicker sections and long service conditions.
Studies on VT25U/TiB composites indicate improved high-temperature performance (often discussed in the 500–700 °C range in reinforced systems), suggesting that the base VT25U matrix is designed for heat-resistant service behavior.
Characteristics of the Material VT25U
| Grade : | VT25U |
| Classification : | Titanium wrought alloy |
| Addition: | Heat-resistant alloy |
| Application: | Disks and blades of compressors of gas turbine engines with operating temperature up to 550 degrees, long service life |
| Foreign analogues: | No data |
Key Properties of VT25U Titanium Alloy
VT25U titanium is used where high strength, heat resistance, and long-life reliability are required. The alloy’s mechanical behavior depends on processing route and heat treatment condition, but it is generally selected for critical rotating and high-load applications.
Tensile Strength
1120 N/mm² to 1200 N/mm² (typical target range).
Yield Stress
High yield stress suitable for turbine compressor parts and other high-load structures.
Impact Strength
Good toughness when processed correctly, supporting durability under high stress.
Hardness
Strong hardness performance, especially when optimized for heat-resistant service.
Chemical Composition in % of the Material VT25U
GOST 1-90013 - 81
| Fe | C | Si | Mo | W | N | You | Al | Zr | O | Sn | H | Impurities |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.5 - 1.5 | up to 0.1 | 0.1 - 0.3 | 3.5 - 4.5 | 0.4 - 1.5 | up to 0.04 | 78.95 - 85.7 | 6 - 7 | 3 - 4.5 | up to 0.15 | 1 - 2.5 | up to 0.01 | other 0.3 |
Note: Ti is the basis; Ti percentage is approximate.
Key Mechanical Property Highlights of VT25U Titanium Alloy
Key insights and general interpretation from VT25U mechanical property discussions:
| Property / Observation | Typical Value / Description | Source |
|---|---|---|
| Ultimate Tensile Strength (σB) | 1120 MPa ≤ σB ≤ 1200 MPa as a practical strength range for balanced properties | - |
| Effect of Increased Strength | Increasing σB beyond ~1200 MPa may reduce ductility and impact toughness if not controlled | - |
| Elevated-Temperature Strength | Strength retention is emphasized for heat-resistant service; reinforced systems show further improvement | VT25U/TiB composite discussions |
VT25U offers excellent strength for room and elevated temperature use. For best performance, processing and heat treatment should be selected to maintain ductility while achieving required strength.
Designations:
Mechanical properties :
σin - Tensile strength [MPa]
σT - Yield stress [MPa]
δ5 - Specific elongation at fracture [%]
ψ - Reduction of area [%]
KCU - Impact strength [kJ/m²]
HB - Brinell hardness [MPa]
Physical properties :
T - Test temperature [Grade]
E - Young modulus [MPa]
α - Coefficient of linear expansion (20° - T) [1/Grade]
λ - Thermal (heat) condition coefficient [Watt/(m·Grade)]
ρ - Density [kg/m³]
C - Specific heat (range 20° - T) [J/(kg·Grade)]
R - Electrical resistance [Ohm·m]
Applications of VT25U Titanium
Aerospace Components
Used for turbine and compressor components where heat resistance and high strength are required.
Defense and Military
Suitable for durable parts exposed to extreme conditions and heavy loading.
Marine Engineering
Corrosion resistance supports long life in marine and seawater-exposed applications.
High-Performance Industrial Use
Used in industrial systems that need high strength, wear resistance, and temperature stability.
Ready Stock VT25U Titanium Bars and Rods for Immediate Delivery
Russian Metals maintains ready stock of VT25U titanium bars and rods for quick dispatch. Material can be supplied with standard documentation, and cutting support is available based on requirement.
Our inventory helps manufacturers meet deadlines without compromising on alloy quality and application fit.
Why Choose Russian Metals for VT25U Titanium?
Certified Quality
We support VT25U supply with quality checks and documentation suitable for demanding industries.
Competitive Pricing
Cost-effective supply options for aerospace and high-performance industrial titanium requirements.
Global Delivery
Fast and reliable shipping support for domestic and international orders.
Contact Us for VT25U Titanium Orders
For pricing, stock availability, or custom cutting, contact Russian Metals today. We supply GOST VT25U Titanium for aerospace, defense, marine, and industrial applications.