BT20 (БТ20)
BT20 Titanium Alloy for Aerospace and Chemical Equipment Manufacturing
BT20 Titanium is a high-strength, heat-resistant titanium alloy widely used in demanding industries such as aerospace, chemical equipment manufacturing, and marine engineering. Known for its exceptional corrosion resistance, heat resistance, and fatigue strength, BT20 titanium is suitable for critical applications requiring high performance in extreme environments.
What is BT20 Titanium Alloy?
BT20 Titanium is a titanium alloy that offers outstanding mechanical properties, making it ideal for use in aerospace, marine, and chemical industries. This alloy is designed to withstand high temperatures, making it perfect for applications such as gas turbine components, chemical reactors, and corrosion-resistant equipment.
With excellent machinability and strong resistance to thermal stress, 2618 aluminium remains highly suitable for complex machining operationswhile maintaining exceptional mechanical properties even under high-temperature conditions.
It is specifically known for its stability in extreme conditions, combining high strength with excellent weldability.
Characteristics of the material VT20
| Grade : | VT20 |
| Classification : | Titanium wrought alloy |
| Application: | parts operating for a long time at temperatures up to 500°; good corrosion resistance; pseudo α structure class |
| Foreign analogues: | No data |
Chemical composition in % of VT20 material
GOST 1-19807 - 91
| Fe | C | Si | Mo | V | N | You | Al | Zr | O | H | Impurities |
|---|---|---|---|---|---|---|---|---|---|---|---|
| up to 0.25 | up to 0.1 | up to 0.15 | 0.5 - 2 | 0.8 - 2.5 | up to 0.05 | 85.15 - 91.4 | 5.5 - 7 | 1.5 - 2.5 | up to 0.15 | up to 0.015 | other 0.3 |
Note: Ti is the basis; Ti percentage is approximate.
Technological properties of the material VT16.
| Weldability: | without restrictions. |
Mechanical properties at T=20 o C of VT20 material.
| Assortment | Size | For example. | σin | σT | δ5 | ψ | KCU | Thermal processing |
|---|---|---|---|---|---|---|---|---|
| - | mm | - | MPa | MPa | % | % | kJ/m² | - |
| Annealed sheet, GOST 22178-76 | 930-980 | 6 - 12 | Annealing | |||||
| Rod, GOST 26492-85 | 885 | 7 - 8 | 20 | 250-300 | Annealing | |||
| Rod, high quality, GOST 26492-85 | 885-1130 | 8 - 10 | 20-25 | 300-400 | Annealing | |||
| Plate, GOST 23755-79 | 11 - 100 | 880-1130 | 5-6 | 10-12 | 300 | Annealing |
| Hardness VT20, | HB 10 -1 = 255 - 341 MPa |
| T | E 10-5 | α 106 | λ | ρ | C | R 109 |
|---|---|---|---|---|---|---|
| Hall | MPa | 1/Grad | W/(m deg) | kg/ m3 | J/(kg deg) | Ohm m |
| 20 | 1.12 | 8 | 4450 | 1110 | ||
| 100 | 8.3 | 8.8 | ||||
| 200 | 8.3 | 10.2 | 0.587 | |||
| 300 | 9 | 10.9 | 0.628 | |||
| 400 | 9.2 | 12.2 | 0.67 | |||
| 500 | 9.3 | 13.8 | 0.712 | |||
| 600 | 9.5 | 15.1 |
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]
Benefits of BT20 Titanium Alloy
High Strength-to-Weight Ratio
Ensures superior strength without adding excess weight, critical for aerospace applications.
Corrosion Resistance
Performs well in seawater, acidic environments, and harsh industrial conditions.
Heat Resistance
Maintains strength at high temperatures, ideal for high-temperature components.
Weldability
Offers easy weldability without requiring additional heat treatment, making it highly versatile for precision manufacturing.
Processing and Machining BT20 Titanium
Cutting
Use carbide tools or high-speed steel for precision cutting. Water jet or laser cutting are also effective methods.
Drilling and Turning
Carbide drills and inserts are ideal, with cooling systems to prevent overheating and maintain tool life.
Grinding
Use diamond wheels for fine grinding and high-quality finishes.
Milling
Carbide end mills and cooling techniques ensure accurate machining.
BT20 Titanium Alloy Applications
The BT20 titanium alloy is primarily used in industries where materials must withstand extreme heat, stress, and corrosion:
- Aerospace Industry: Ideal for turbine blades, engine components, and structural parts.
- Chemical Industry: Used for heat exchangers, chemical reactors, and storage tanks.
- Marine Engineering: Suitable for corrosion-resistant ship components.
- Automotive Engineering: Used in high-performance vehicle components.
Why Choose Russian Metals for BT20 Titanium?
At Russian Metals, we offer top-quality BT20 Titanium products, including plates, rods, bars, and pipes. Our titanium alloys meet GOST standards and are perfect for aerospace and chemical equipment manufacturing.
Why Choose Us?
- Competitive Pricing: High-performance alloys at affordable rates.
- Certified Stock: Guaranteed quality with certified stock.
- Expert Machining: Precision machining and fast shipping across India.
- Technical Support: Assistance to meet your specific requirements.
Its ability to maintain mechanical properties in high-temperature conditions (up to 550°C) makes BT20 an ideal choice for critical applications.
Weldability:
- Without restrictions – welding is performed without heating and without subsequent heat treatment
- Limited weldability – welding is possible with heating up to 100–120°C and subsequent heat treatment
- Difficult to weld – to obtain high-quality welded joints, additional operations are required: heating up to 200–300°C during welding, and heat treatment after welding (annealing)
Contact Us for BT20 Titanium Orders
For more information or to place an order, contact Russian Metals today. We specialize in providing the best quality GOST BT20 titanium at competitive prices for industrial, defense, and aerospace applications.