
WT18 Titanium is a high-performance alloy engineered for aerospace, space, and aviation industries. Known for its strength, corrosion resistance, and light weight, it is the ideal material for high-stress applications where durability and performance are paramount. Russian Metals offers WT18 titanium sheets and billets customized to meet specific needs, ensuring high-quality materials for demanding industries.

WT18 Titanium stands out due to its excellent combination of strength and lightness, making it a preferred choice in industries like aerospace and aviation. Below are some of the key properties that make WT18 ideal for critical applications:
High Strength-to-Weight Ratio: Offers exceptional performance without compromising on weight.
Corrosion Resistance: Performs well under extreme environmental conditions, including high-temperature environments.
Durability: Built to last even under constant stress, making it perfect for aerospace components.
| Grade : | WT18 |
| Classification : | Titanium wrought alloy |
| Application: | for the production of rods, forgings, stampings; heat-resistant alloy, recommended for parts operating for a long time (up to 500 hours) at 550 - 600 °C and for a short time (single-use parts) - up to 800 °C. |
| Foreign analogues: | No data |
GOST 1-90013 - 81
| Fe | C | Si | Mo | N | Nb | You | Al | Zr | O | H | Impurities |
|---|---|---|---|---|---|---|---|---|---|---|---|
| up to 0.15 | up to 0.1 | 0.05-0.18 | 0.2-1 | up to - 0.05 | 0.5-1.5 | 76.82 - 82.05 | 7.2 - 8.2 | 10 - 12 | up to 0.14 | up to 0.015 | other 0.3 |
Mechanical performance data under various loading and temperature conditions (values may vary depending on processing and heat treatment):
| Condition / Property | Typical Value / Observation | Source |
|---|---|---|
| Yield Strength (quasi-static, room temperature) | ≈ 1,180 MPa | MDPI |
| Ultimate Tensile Strength (flow stress under compression) | ≈ 1,500 MPa | MDPI |
| Dynamic / High-Strain-Rate Flow Stress (SHPB test, room temperature) | ~1,300 MPa at 1,033 s⁻¹ → ~1,680 MPa at 5,015 s⁻¹ | MDPI |
| Temperature Sensitivity | Flow stress decreases with rising temperature (25 °C → 600 °C), indicating thermal softening | MDPI |
| Ductility (aged condition example) | Tensile strength ~1,295 MPa, elongation ~8.2% | MDPI |
Overall, TC18 demonstrates outstanding strength and high strain-rate sensitivity, retaining excellent mechanical performance under dynamic loading, though ductility remains moderate depending on heat treatment.
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]
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]
WT18 titanium is widely used across a range of industries, particularly aerospace, space exploration, and aviation. Here are some of the critical applications:
Aircraft Components: Titanium's lightweight and strong nature make it essential for aircraft structural components.
Space Exploration: WT18 titanium plays a vital role in the construction of components exposed to extreme conditions in space.
Aerospace Fasteners: Used in high-strength fasteners and connectors, ensuring secure and reliable connections.
The properties of WT18 make it a versatile and reliable material in the space and aviation industries. Whether it's for aircraft frames or spacecraft components, our titanium alloys provide the necessary durability and performance.
At Russian Metals, we understand the demands of the aerospace industry and are committed to delivering WT18 titanium that meets the highest specifications.
Russian Metals is your trusted supplier for WT18 titanium, offering products tailored to the specific needs of the aerospace industry. Here's why we stand out:
Certified Quality: We adhere to stringent quality controls to deliver materials that meet global industry standards.
Custom Cutting & Shaping: Get your WT18 titanium cut and shaped to fit your unique project requirements.
Technical Expertise: Our team provides full technical support, helping you choose the right material for your needs.
WT18 - chemical composition, mechanical, physical and technological properties, density, hardness, application