BT9 / VT9 / ВТ9 Titanium Alloy
Russian Metals supplies BT9 / VT9 / ВТ9 Titanium Alloy for heat-resistant, aerospace, aircraft engine, gas turbine and high-performance engineering applications.
BT9 / VT9 is a Russian titanium wrought alloy grade used for aircraft engine parts, compressor components, forged discs, forged blades, machined blanks and high-temperature service where strength, corrosion resistance and thermal stability are required.
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Russian Grade Name and Product Name
| Product Name | Russian Grade | Russian Product Name | Product Type |
|---|---|---|---|
| BT9 Titanium Alloy | ВТ9 | Титановый сплав ВТ9 | Heat-resistant titanium alloy |
| VT9 Titanium Alloy | ВТ9 | Титановый сплав ВТ9 | Titanium wrought alloy |
| VT9 Titanium Bar | ВТ9 | Титановый сплав ВТ9 | Bar and rod material |
| VT9 Titanium Plate | ВТ9 | Титановый сплав ВТ9 | Plate and sheet material |
| VT9 Titanium Forging | ВТ9 | Титановый сплав ВТ9 | Forging, forged disc and forged blade material |
Important Grade Confusion Note
Russian BT9 / VT9 / ВТ9 Titanium Alloy should not be confused with ASTM Titanium Grade 9 unless the material certificate, chemical composition and project specification confirm the exact match.
BT9 / VT9 is a Russian heat-resistant titanium alloy grade with its own composition, mechanical properties and technical standards. Final material selection should always be based on MTC, heat number traceability and required application data.
Material Overview
VT9 / ВТ9 Titanium Alloy is known for high strength, heat resistance, corrosion resistance and reliable performance in demanding engine-related applications. It is used for aircraft engine parts, gas turbine components, compressor discs, compressor blades, forged discs, forged blades, turbine parts and other high-temperature titanium alloy products.
Russian Metals supplies VT9 / ВТ9 in project-ready forms including sheet, strip, foil, plate, bar, rod, profile, pipe shell, pipe, forging, forged blank, forged disc, forged blade, billet and machined blank.
Grade Classification
| Grade | Russian Name | Classification | Main Performance Focus |
|---|---|---|---|
| BT9 | ВТ9 | GOST Latin-style naming | Heat-resistant Russian titanium alloy |
| VT9 | ВТ9 | Titanium wrought alloy | Aerospace and aircraft engine applications |
| ВТ9 | ВТ9 | Russian Cyrillic grade | Титановый сплав ВТ9 |
BT9 / VT9 / ВТ9 Titanium Alloy Overview
BT9 / VT9 / ВТ9 Titanium Alloy is a heat-resistant titanium alloy used for semi-finished products, forged components, aircraft engine parts, gas turbine engine parts, compressor discs, compressor blades and high-temperature machined components.
This grade is selected for applications where titanium alloy strength, thermal stability, corrosion resistance and elevated-temperature service performance are important.
Heat-Resistant Alloy Overview
VT9 / ВТ9 is mainly used for elevated-temperature service. It is commonly selected for parts working up to around +500°C, depending on product form, heat treatment, exposure time and project specification.
The alloy is suitable for high-temperature titanium alloy applications such as gas turbine components, compressor parts, forged blades, forged discs and aircraft engine components.
Comparison With VT6 Titanium Alloy
VT9 / ВТ9 offers higher strength and heat-resistant performance compared with VT6 / ВТ6 because of its alloying system, including higher aluminium and silicon content. VT6 is widely used for general aerospace and structural titanium applications, while VT9 is more focused on heat-resistant aircraft engine and gas turbine service.
| Comparison Point | VT6 / ВТ6 | VT9 / ВТ9 |
|---|---|---|
| Main Use | Aerospace structures, pressure components, forgings | Aircraft engine parts, compressor parts, forged discs and blades |
| Heat Resistance | Good heat-resistant performance | Higher heat-resistant focus |
| Alloying Focus | Ti-Al-V | Ti-Al-Mo-Si-Zr |
| Service Focus | Structural and aerospace parts | Engine and gas turbine components |
| Welding | More commonly used in welded structures | Welding generally not recommended unless approved |
Available Product Forms
| Product Form | VT9 / ВТ9 Availability | Common Use |
|---|---|---|
| Sheet | Available | Formed parts, structural components, heat-resistant applications |
| Strip | Available | Thin-gauge fabrication and precision components |
| Foil | Available where applicable | Thin-gauge titanium applications |
| Plate | Available | Machined parts, structural sections, high-temperature parts |
| Bar | Available | Shafts, pins, compressor parts, machined components |
| Rod | Available | Precision machining and engine-related components |
| Profile | Available | Shaped sections and aircraft components |
| Pipe Shell | Available where applicable | Fabricated or machined titanium components |
| Pipe | Available where applicable | Aerospace, mechanical and industrial applications |
| Forging | Available | High-strength and high-temperature components |
| Forged Blank | Available | Parts requiring further machining |
| Forged Disc | Available | Gas turbine and aircraft engine applications |
| Forged Blade | Available | Aircraft engine blade and compressor blade applications |
| Billet | Available | Rolling, forging, machining and custom manufacturing |
| Machined Blank | Available | CNC-ready parts and precision engineering |
VT9 / ВТ9 Product Specification Table
| Specification Point | VT9 / ВТ9 Details |
|---|---|
| Grade Name | BT9 / VT9 / ВТ9 |
| Russian Product Name | Титановый сплав ВТ9 |
| Alloy Type | Heat-resistant titanium wrought alloy |
| Main Alloy System | Ti-Al-Mo-Si-Zr |
| Common Forms | Sheet, strip, foil, plate, bar, rod, pipe, profile, forging, billet |
| Typical Use | Aircraft engine parts, compressor parts, forged discs, forged blades |
| Temperature Focus | High-temperature service up to around +500°C depending on condition |
| Heat Treatment | Double annealing, quenching and aging, stress relieving where required |
| Weldability Note | Welding is generally not recommended unless project documentation allows it |
| Equivalent Grade | No direct equivalent grade should be assumed without technical review |
| Certification | MTC, chemical analysis, mechanical testing and traceability |
Product Form Details
VT9 / ВТ9 Titanium Sheet
VT9 titanium sheet is used for formed parts, structural components and heat-resistant titanium applications. Sheets can be supplied in project-based thickness, width, length and surface condition.
VT9 / ВТ9 Titanium Strip
VT9 titanium strip is suitable for thin-gauge fabrication, formed parts, precision components and lightweight heat-resistant applications.
VT9 / ВТ9 Titanium Foil
VT9 titanium foil may be supplied for thin-gauge titanium applications where low weight, controlled gauge and heat-resistant performance are required.
VT9 / ВТ9 Titanium Plate
VT9 titanium plate is used for machined parts, structural sections, high-temperature components and aircraft engine-related titanium parts.
VT9 / ВТ9 Titanium Bar
VT9 titanium bar is used for turning, machining, shafts, pins, compressor parts and engineered components requiring high-strength heat-resistant titanium alloy performance.
VT9 / ВТ9 Titanium Rod
VT9 titanium rod is suitable for precision machining, CNC parts, gas turbine engine components and high-temperature titanium alloy applications.
VT9 / ВТ9 Titanium Profile
VT9 titanium profile is used for shaped sections, aircraft components and custom engineering applications requiring titanium alloy strength and thermal stability.
VT9 / ВТ9 Pipe Shell and Pipe
VT9 pipe shell and pipe forms may be supplied for fabricated, machined, aerospace, mechanical and industrial titanium components where heat-resistant titanium properties are required.
VT9 / ВТ9 Titanium Forging
VT9 titanium forging is used for high-strength and high-temperature components including aircraft engine parts, turbine parts, compressor components and load-bearing titanium products.
VT9 / ВТ9 Forged Blank
VT9 forged blanks are semi-finished products supplied before machining into final aerospace, engine and industrial components.
VT9 / ВТ9 Forged Disc
VT9 forged discs are used for gas turbine and aircraft engine applications where heat resistance, high strength and stable mechanical performance are important.
VT9 / ВТ9 Forged Blade
VT9 forged blades are used for aircraft engine blade and compressor blade applications where high-temperature strength and reliable performance are required.
VT9 / ВТ9 Titanium Billet
VT9 billets are used for rolling, forging, machining and custom manufacturing of aerospace, gas turbine and high-temperature components.
VT9 / ВТ9 Machined Blank
VT9 machined blanks are CNC-ready titanium alloy pieces prepared for milling, turning, drilling, grinding and final precision engineering production.
Surface Condition and Finish Options
| Product Type | Surface / Finish Options |
|---|---|
| Sheet and Strip | Bright, pickled, polished, ground, clean finish |
| Plate | Black, pickled, machined, ground, sand-blasted |
| Bar and Rod | Black, bright, peeled, polished, ground, machined |
| Pipe and Profile | Pickled, polished, machined, clean finish |
| Forging and Forged Blank | Black, machined, ground, shot-blasted |
| Forged Disc and Blade | Black, machined, ground, project-specific finish |
| Billet | Black, peeled, machined or project-specific finish |
| Machined Blank | Machined, ground, polished or custom finish |
Dimensional Range Overview
| Product Form | Common Dimensional Details |
|---|---|
| Sheet | Thickness, width and length as per project requirement |
| Strip | Controlled thickness and width, coil or cut-length options |
| Foil | Thin-gauge availability where applicable |
| Plate | Medium to heavy thickness for machining and high-temperature components |
| Bar | Diameter and length according to machining requirement |
| Rod | Precision diameter and cut-length options |
| Profile | Shape, section and length based on drawing |
| Pipe Shell | Diameter, wall thickness and machined shell dimensions as required |
| Pipe | Outside diameter, wall thickness and length where applicable |
| Forging | Drawing-based forged shape, section and weight |
| Forged Blank | Semi-finished size with machining allowance |
| Forged Disc | Diameter, thickness and machining allowance as per drawing |
| Forged Blade | Forged shape, blade profile and machining allowance as required |
| Billet | Diameter, length and cut size as per forging or machining need |
| Machined Blank | Custom size, tolerance and finish based on drawing |
Chemical Composition Overview
VT9 / ВТ9 contains titanium with aluminium, molybdenum, silicon and zirconium as key alloying elements. These elements support strength, thermal stability, elevated-temperature service and heat-resistant titanium alloy performance.
VT9 / ВТ9 Chemical Composition
| Element | Typical Range / Limit |
|---|---|
| Titanium | Balance |
| Aluminium | 5.8–7.0% |
| Molybdenum | 2.8–3.8% |
| Silicon | 0.20–0.35% |
| Zirconium | 1.0–2.0% |
| Iron | Max 0.25% |
| Carbon | Max 0.10% |
| Nitrogen | Max 0.05% |
| Oxygen | Max 0.15% |
| Hydrogen | Max 0.015% |
| Other Impurities | Max 0.30% |
Titanium Balance Note
Titanium is the base element in BT9 / VT9 / ВТ9. The remaining chemistry is controlled through aluminium, molybdenum, silicon, zirconium and impurity limits to support high-temperature strength, corrosion resistance and stable service performance.
Role of Alloying Elements
Aluminium
Aluminium improves strength, heat resistance, phase stability and lightweight performance in VT9 titanium alloy.
Molybdenum
Molybdenum supports strengthening, beta-phase stabilization and elevated-temperature performance in titanium wrought alloys.
Silicon
Silicon supports heat resistance and high-temperature stability in VT9 / ВТ9 titanium alloy.
Zirconium
Zirconium helps improve thermal stability, strength retention and elevated-temperature performance in heat-resistant titanium alloy applications.
Controlled Impurities
| Controlled Element | Importance |
|---|---|
| Iron | Controlled for mechanical consistency and alloy stability |
| Carbon | Limited to maintain titanium alloy quality |
| Nitrogen | Controlled because it affects titanium alloy performance |
| Oxygen | Controlled for strength, ductility and service behavior |
| Hydrogen | Controlled because hydrogen can affect titanium quality |
| Other Impurities | Limited for MTC compliance and grade consistency |
Mechanical Properties
| Grade | Product Form / Condition | Tensile Strength | Elongation | Reduction of Area | Impact Toughness | Hardness |
|---|---|---|---|---|---|---|
| VT9 / ВТ9 | Bar, annealed | Approx. 930–1230 MPa | 6–10% | 15–25% | As per MTC | As per MTC |
| VT9 / ВТ9 | Hot-rolled bar | Approx. 930–1230 MPa | As per MTC | As per MTC | As per MTC | As per MTC |
| VT9 / ВТ9 | Forged disc | As per heat treatment and MTC | As per MTC | As per MTC | As per MTC | As per MTC |
| VT9 / ВТ9 | Forged blade | Approx. 1030–1380 MPa | As per MTC | As per MTC | As per MTC | As per MTC |
| VT9 / ВТ9 | Plate / sheet / forging | As per product condition | As per MTC | As per MTC | As per MTC | As per MTC |
Bar Mechanical Properties
VT9 / ВТ9 titanium bar is used where high strength and elevated-temperature stability are required. Annealed and hot-rolled bar conditions can provide high tensile strength for machined components, compressor parts, shafts, pins and engine-related applications.
Forging Mechanical Properties
VT9 forged discs, forged blades, forged blanks and other forged parts are selected for high-temperature applications where strength, thermal stability and reliable mechanical behavior are required after annealing or heat treatment.
Final mechanical properties depend on forging method, heat treatment, section size, testing direction and project specification.
Hardness
VT9 hardness values depend on product form, heat treatment and final condition. Brinell hardness or HRC testing can be provided where required for machining, inspection and finished part performance.
Density
VT9 / ВТ9 provides titanium’s lightweight performance compared with many steel alloys. Its high strength-to-weight ratio makes it suitable for aerospace, aviation, aircraft engine and gas turbine applications.
Heat Treatment
VT9 / ВТ9 can be supplied in annealed, double-annealed, stress-relieved, quenched and aged or project-specific heat-treated condition depending on product form and application.
| Heat Treatment Type | Purpose |
|---|---|
| Annealing | Improves stability and supports balanced properties |
| Double Annealing | Supports a useful combination of strength and ductility |
| Quenching and Aging | Used for thermal hardening where required |
| Stress Relieving | Reduces residual stress after forming or machining |
| Project-Specific Heat Treatment | Selected based on component use and standard requirement |
Thermal Hardening
VT9 / ВТ9 can be thermally hardened by quenching and aging, depending on product form and required properties. Final heat treatment should be selected according to mechanical property targets, service temperature, section size and material standard.
Hot Deformation
VT9 can be hot-deformed and processed into forged discs, forged blades, bars, rods, plates and machined blanks. Its pressure-treatment properties are generally considered less favorable than VT6, so controlled temperature, deformation rate and forging practice are important.
Weldability
VT9 / ВТ9 is generally not recommended for welding unless project documentation, approved welding procedure or material standard allows it. For critical aircraft engine and high-temperature applications, welding suitability should be confirmed before fabrication.
Machinability, Formability and Corrosion Resistance
BT9 / VT9 / ВТ9 can be processed by cutting, turning, milling, drilling, grinding, CNC machining, hot working, forging and forming. Proper titanium tooling, coolant, controlled feed rate and heat management are recommended.
VT9 provides titanium’s corrosion resistance along with high strength and heat-resistant performance. It is suitable for aerospace, aircraft engine, gas turbine and industrial applications requiring both corrosion resistance and elevated-temperature strength.
Applications of BT9 / VT9 / ВТ9 Titanium Alloy
| Application | VT9 / ВТ9 Use |
|---|---|
| Gas turbine engine discs | Forged disc and high-temperature component material |
| Aircraft engine blades | Forged blade and compressor blade material |
| Compressor parts | Compressor discs, blades and machined parts |
| Turbine parts | Heat-resistant titanium alloy components |
| Forged discs | Gas turbine and aircraft engine applications |
| Forged blades | Aircraft engine and compressor applications |
| Forged blanks | Semi-finished parts before machining |
| High-temperature parts | Components working up to around +500°C |
| Machined aerospace components | CNC-ready bars, rods, plates and blanks |
| Semi-finished products | Sheet, plate, bar, rod, profile and billet forms |
| Aviation applications | Aircraft engine and structural titanium alloy parts |
Testing, Certification and Packaging
Russian Metals supplies BT9 / VT9 / ВТ9 titanium alloy materials with inspection, documentation and export packaging support based on project requirement.
| Testing / Certification Point | Details |
|---|---|
| Chemical Analysis | Confirms Ti, Al, Mo, Si, Zr and impurity limits |
| Mechanical Testing | Tensile strength, yield strength, elongation and reduction of area where required |
| Hardness Testing | Available for bar, plate, forging and machined blank |
| Ultrasonic Testing | Available for selected bars, plates, billets, discs, blades and forgings |
| PMI Testing | Positive material identification where required |
| Dimensional Inspection | Diameter, thickness, width, length and tolerance checks |
| Material Certificate | MTC with heat number and grade traceability |
| Heat Number | Heat-level material tracking |
| Batch Traceability | Batch identification from supply to packing |
| Grade Marking | BT9 / VT9 / ВТ9 marking where applicable |
| Export Packaging | Wooden box, bundle packing, wrapped protection or project-specific packing |
Grade Comparison Table
| Grade | Russian Name | Alloy System | Main Product Form | Key Benefit | Typical Application |
|---|---|---|---|---|---|
| BT9 | ВТ9 | Ti-Al-Mo-Si-Zr | GOST Latin-style naming | Identifies VT9 grade family | Aircraft engine and heat-resistant parts |
| VT9 | ВТ9 | Ti-Al-Mo-Si-Zr | Sheet, plate, bar, rod, forging | Heat resistance and high strength | Compressor parts and gas turbine components |
| ВТ9 | ВТ9 | Ti-Al-Mo-Si-Zr | Forged disc, forged blade, machined blank | Russian titanium grade identity | Титановый сплав ВТ9 |
Equivalent Grade Note
VT9 / ВТ9 should not be assumed to have a direct equivalent grade unless the material certificate and project specification confirm the match.
BT9 / VT9 should also not be confused with ASTM Titanium Grade 9. The correct grade should be verified by Russian designation, chemical composition, mechanical properties, heat treatment condition and MTC.
FAQs
What is BT9 titanium alloy?
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BT9 titanium alloy is a GOST Latin-style name for the Russian titanium grade ВТ9. In English transliteration, it is commonly written as VT9 Titanium Alloy.
Is BT9 the same as VT9?
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Yes, BT9 and VT9 generally refer to the same Russian grade family ВТ9, but final material should be confirmed by MTC, chemical composition and project specification.
What is the Russian name of VT9?
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The Russian grade name of VT9 is ВТ9.
What is ВТ9 titanium alloy used for?
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ВТ9 titanium alloy is used for aircraft engine parts, gas turbine components, compressor discs, compressor blades, forged discs, forged blades, forged blanks, high-temperature parts and machined aerospace components.
Is BT9 / VT9 the same as ASTM Grade 9 titanium?
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No, Russian BT9 / VT9 / ВТ9 should not be assumed to be ASTM Grade 9 titanium unless the material certificate and chemical composition confirm it.
What is the chemical composition of VT9?
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VT9 / ВТ9 contains titanium balance with aluminium, molybdenum, silicon and zirconium, plus controlled impurity limits for iron, carbon, nitrogen, oxygen, hydrogen and other elements.
What are the main alloying elements in VT9?
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The main alloying elements in VT9 / ВТ9 are aluminium, molybdenum, silicon and zirconium.
What are the mechanical properties of VT9?
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VT9 mechanical properties depend on product form and heat treatment. Typical bar tensile strength is commonly referenced around 930–1230 MPa, while forged blade condition may reach higher tensile strength ranges depending on heat treatment and MTC.
Is VT9 a heat-resistant titanium alloy?
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Yes, VT9 / ВТ9 is a heat-resistant titanium wrought alloy used for high-temperature aerospace, aircraft engine and gas turbine applications.
Is VT9 used in aircraft engines?
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Yes, VT9 / ВТ9 is used for aircraft engine components such as compressor parts, forged discs, forged blades and turbine-related parts.
Is VT9 used for gas turbine engine parts?
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Yes, VT9 / ВТ9 is used for gas turbine engine parts, forged discs, compressor components and high-temperature titanium alloy applications.
What is the operating temperature of VT9?
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VT9 / ВТ9 is commonly used for elevated-temperature service up to around +500°C, depending on product form, heat treatment, exposure time and project specification.
Can VT9 be welded?
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VT9 / ВТ9 is generally not recommended for welding unless approved project documentation, material standards or welding procedure allows it.
What heat treatment is used for VT9?
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VT9 / ВТ9 may be supplied in annealed, double-annealed, stress-relieved, quenched and aged or project-specific heat-treated condition.
What product forms are available in BT9 / VT9?
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Russian Metals supplies BT9 / VT9 / ВТ9 in sheet, strip, foil, plate, bar, rod, profile, pipe shell, pipe, forging, forged blank, forged disc, forged blade, billet and machined blank forms.
BT9 / VT9 / ВТ9 Titanium Alloy with MTC and Export Support
Send the required alloy designation, product form, dimensions, quantity, standard, delivery condition, testing, certificate requirements and destination for a technically correct quotation.
BT9 / VT9 / ВТ9 supply support.
Chemical, mechanical, heat-treatment and inspection documentation.
Product-form, cut-to-size, forging and drawing-based supply support.
Export packaging and international delivery assistance.