Description
Overview Of Titanium wire for fasteners (gjb2219A-2015)
TA2 titanium wire, equivalent to ASTM Grade 2, is a commercially pure titanium material commonly used for producing corrosion-resistant fasteners. lts moderate strength, combined with excellent ductility and weldability, makes it ideal for forming and cold-heading processes required in bolt and nut manufacturing. This alloy offers outstanding corrosion resistance in seawater, acid, alkali, and chloride environments, ensuring long-term performance in chemical plants, offshore structures, and marine systems. TA2 titanium fasteners are often used in applications where resistance to galvanic corrosion and light weight are more critical than extreme strength.
Chemical Composition(wt,-%)
| Grade | Al | V | Zr | Mo | Si | Fe |
| TA2 | – | – | – | – | – | ≤0.30 |
| Grade | C | O | N | H | Ti | |
| TA2 | ≤0.10 | ≤0.25 | ≤0.05 | ≤0.015 | Bal | – |
Mechanical Properties
| Grade | Dia(mm) | Delivery Status | Tensile Strength
Rm , (MPa) |
Proof Strength
Rp0.2, (MPa) |
| TA2 | 2.0~6.0 | M | 440 | – |
| Grade | Elongation after Fracture
A, % |
Reduction of Area
Z, % |
Shear Strength
τ, MPa |
|
| TA2 | – | – | – | – |
Recommended Heat Treatment
| Grade | Heat Treatment Type | Heat Treatment Schedule |
| TA2 | Annealing | (600~700)°C, 1h, air cool or furnace cool (furnace cool when vacuum annealing) |
Advantages of TA2 Titanium Wire for Fasteners
1. Outstanding Corrosion Resistance: Performs reliably in seawater, acid, and chemical media,ideal for marine and chemical fasteners.
2. Excellent Cold Formability: Suitable for heading, threading, and machining of bolts, nuts, and washers with minimal cracking risk.
3. Lightweight 8 Non-Magnetic: Reduces overall structure weight while avoiding magnetic interference in precision assemblies.
4. Stable Mechanical Properties: Provides consistent ductility and moderate strength, ensuring tight, durable fastening under load.
5. Long Service Life: Excellent resistance to oxidation and galvanic corrosion enhances fastener longevity in harsh environments.
Applications of TA2 Titanium Wire for Fasteners
1.Marine Engineering: Bolts, nuts, and washers for ships, offshore platforms, and seawater piping.systems.
2.Chemical Processing: Corrosion-resistant fasteners used in acid, alkali, and chlorine-rich environments.
3.Power and Desalination Plants: Used in pumps, heat exchangers, and pipeline joints exposed to seawater.
4.Electronics and Medical Devices: Non-magnetic and biocompatible fasteners for precision or sensitive assemblies.
5.5.General industrial Equipment: Structural joints requiring long-term corrosion resistance and light weight.
