YS/T 1077 TB13 Titanium Alloy Wire Description
What is YS/T 1077 TB13 Titanium Alloy Wire?
YS/T 1077 TB13 Titanium Alloy Wire, corresponding with UNS R58600, is an aerospace-grade β titanium wire with the nominal composition Ti-4Al-22V. It meets the YST 1077-2015 specification and is classified as a meta-stable β titanium alloy.
Unlike α-β alloys such as TC4, TB13 maintains a single-phase β structure at room temperature. This provides excellent advantages, e.g. super-elasticity,cold work-ability, high strength.
With strictly controlled impurities (H ≤ 0.015%, O ≤ 0.20%), TB13 wire is widely used in aerospace fasteners, aircraft springs, precision elastic components, and space mechanisms where elasticity, light weight, and reliability are critical.
Technical Specifications
1. Diameter ranges for aviation
- Common aviation sizes: 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0 mm.
- Ultra-fine sizes for precision aviation components: 0.1, 0.15, 0.2, 0.3, 0.4 mm.
2. Surface treatment (Aviation-grade)
|
Surface type |
Process |
Characteristics |
|
Pickled |
HF+HNO₃ acid immersion |
Matte, uniform, oxide-free, Ra≤0.8μm |
|
Bright |
Mechanical or electrolytic polishing |
Mirror-like, smooth, Ra≤0.4μm |
|
Drawn (as-drawn) |
Direct from drawing dies |
Natural metal surface, fine lines |
|
Degreased |
Solvent/alkaline cleaning |
Residue-free, non-etched |
3. Production Process & Equipment
- World-class line: Imported Danieli continuous rolling line for Ti/Ni/Zr alloy wires.
- Ultra-high straightness: φ5mm wire straightness deviation ≤ 2/1000.
- Mass production ready: Stable supply with full-scale production capability.
4. Aviation-grade manufacturing process
- Vacuum melting ensures high purity and stable composition.
- Multi-pass cold drawing (bright drawing or pickling) results in a clean and bright surface.
- Precision straightening guarantees straightness of ≤ 2/1000 for aviation use.
- Roller die cold drawing controls dimensional accuracy and grain structure.
- Full-process inspection ensures dimensional accuracy, surface quality and mechanical properties.
5. Basic Product Information
|
Item |
Details |
|
Product name |
TB13 β Titanium Wire |
|
Equivalent |
Ti-4Al-22V (close to Ti-15Mo-3Al-2.7Nb/Gr21) |
|
Execution standards |
YST 1077, GB/T 3623-2022, GJB 2219A, ASTM B863 |
|
Supply form |
Straight wire, coil wire |
|
Surface condition |
Pickled, bright |
6.Chemical Composition (Aviation Grade)
|
Element |
Ti |
Al |
V |
Fe |
C |
N |
H |
O |
|
Content% |
Balance |
3.0-4.5 |
20.0-23.0 |
≤0.20 |
≤0.10 |
≤0.05 |
≤0.015 |
≤0.20 |
7.Mechanical Properties (Aviation Grades)
|
Condition |
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation (%) |
Hardness HV |
|
Annealed (M) |
≥ 700 |
≥ 560 |
≥ 20 |
200–250 |
|
Solution treated and aged (STA) |
≥ 700 |
≥ 560 |
≥ 15 |
200–250 |
|
Special pretreated |
850–980 |
780–900 |
≥ 8 |
290–330 |
8.Physical Properties for Aviation
|
Item |
Value |
|
Density |
4.51 g/cm³ (only 56% of steel) |
|
Elastic modulus |
80–90 GPa |
|
Melting point |
~1688 ℃ |
|
Thermal expansion |
~9.5×10⁻⁶ /℃ |
|
Magnetism |
Non-magnetic |
9.Aviation Environmental Performance
|
Item |
Performance |
|
Service temperature |
From -196 ℃ to 350 ℃ |
|
Corrosion resistance |
Excellent in seawater, salt spray, fuels, and hydraulic fluids |
|
Fatigue performance |
High fatigue limit for long-term aviation service |
|
Hydrogen embrittlement |
Low risk–aviation grade strictly controls hydrogen |
Aviation Product Features
- Superelasticity: Excellent springback and shape recovery. Returns to original shape after bending–perfect for aircraft springs and clips.
- High Strength: Tensile strength up to 1150MPa in STA condition, much higher than pure titanium grades.
- Light Weight: Density of only 4.51 g/cm³–about half of steel. Reduces aircraft weight significantly.
- Excellent Cold Workability: Can be cold drawn into fine wires without cracking.
- Good Corrosion Resistance: Resists aviation fuels, hydraulic fluids, and salt spray.
- Non-magnetic: Safe for avionics and navigation systems.
- Stable Quality: Full-process inspection for consistent aviation-grade quality.
Technical Advantages for Aviation
- High precision: Dimensional tolerance within ±0.01mm, meeting strict aviation requirements.
- Superelastic performance: Low elastic modulus provides excellent springback, solving elastic fatigue in traditional materials.
- High straightness: Straightness up to 1mm/m, ensuring accurate processing.
- Improved strength: Roll die process enhances yield strength, yield ratio and shear resistance of aviation fasteners.
- Hydrogen control: Hydrogen content ≤0.015% to prevent hydrogen embrittlement in long-term aviation service.
Aviation Applications
- Aviation fasteners: Micro rivets, precision screws, self-locking washers, clips, lock wires.
- Aircraft springs: Instrument springs, sensor shrapnel, connector contact springs, seal springs.
- Aircraft engine: High-temperature lead wires, heat shield components, small elastic supports, pipe clamps.
- Avionics: Shielding wire mesh, connector pins, precision elastic electrodes, micro motor parts.
- Hydraulic systems: Seal support springs, throttle valve elastic parts, pipe anti-vibration wires.
- Helicopter: Rotor connecting parts, lightweight fasteners, steering gear elastic components.
Quality Commitment
- Manufactured in strict accordance with YS/T 1077-2015 tandards.
- Each batch comes with a complete Material Test Report (MTR) for full traceability.
- Multi-step quality control includes chemical analysis, mechanical testing, dimensional checks, hydrogen content analysis, and surface inspection.
- Custom sizes, straightness, surface finishes, and heat treatments (M, Y, STA) are available on request.