Titanium Welding Wire | Ti Filler Wire for TIG Welding
Titanium welding wire is a solid filler metal used for TIG and other fusion welding processes involving commercially pure titanium and titanium alloys. The filler wire is selected according to the base metal grade, required weld properties, corrosion resistance, and service conditions. We supply titanium and titanium alloy welding wire in different grades and diameters for fabrication, repair, and joining applications.
For general welding, filler metal is normally selected to match the base metal grade, while corrosion-enhanced grades may be selected when improved resistance to localized corrosion is required. AWS A5.16/A5.16M:2023 provides a classification system for titanium and titanium-alloy welding electrodes, solid wires, and rods, with classifications based primarily on chemical composition.
Titanium Welding Wire Grades
Our titanium welding wire is available in commercially pure titanium and selected titanium alloy grades for different welding requirements. Common AWS filler metal classifications include:
| Welding Wire Classification | Material / Alloy | Typical Base Metal or Application |
|---|---|---|
| ERTi-1 | Commercially pure titanium | Grade 1 titanium and applications requiring high ductility and corrosion resistance |
| ERTi-2 | Commercially pure titanium | Grade 2 titanium; general-purpose titanium fabrication |
| ERTi-3 | Commercially pure titanium | Grade 3 titanium and higher-strength commercially pure titanium applications |
| ERTi-4 | Commercially pure titanium | Grade 4 titanium where higher strength is required |
| ERTi-5 | Ti-6Al-4V | Grade 5 / Ti-6Al-4V components and structural applications |
| ERTi-7 | Titanium-palladium alloy | Grade 7 and applications requiring enhanced resistance to localized corrosion |
| ERTi-9 | Ti-3Al-2.5V | Grade 9 / Ti-3Al-2.5V applications |
| ERTi-12 | Ti-Ni-Mo alloy | Grade 12 and applications requiring improved corrosion resistance |
The available filler wire grades should be selected according to the actual base metal, welding procedure, required mechanical properties, and service environment. Not every titanium base-metal grade should be automatically matched solely by its commercial designation, particularly when enhanced corrosion resistance or other specific weld properties are required.
How to Select Titanium Welding Wire
For most titanium welding applications, the filler wire is selected to provide chemical and metallurgical compatibility with the base metal while achieving the required weld strength, ductility, and corrosion resistance.
| Titanium Base Metal | Common Filler Wire |
|---|---|
| Grade 1 | ERTi-1 |
| Grade 2 | ERTi-2 |
| Grade 3 | ERTi-3 |
| Grade 4 | ERTi-4 |
| Grade 5 / Ti-6Al-4V | ERTi-5 |
| Grade 7 | ERTi-7 |
| Grade 9 / Ti-3Al-2.5V | ERTi-9 |
| Grade 12 | ERTi-12 |
For general fabrication, a filler metal with a composition compatible with the parent material is often preferred. However, specific applications may call for a different filler composition to improve corrosion resistance or achieve other desired weld characteristics. The final selection should therefore consider the base metal grade, welding process, service temperature, corrosive environment, joint design, and applicable welding procedure.
Titanium Welding Wire Specifications
| Item | Specification |
|---|---|
| Product | Titanium & Titanium Alloy Welding Wire |
| Diameter | Φ0.1–Φ5 mm* |
| Common Welding Grades | ERTi-1, ERTi-2, ERTi-3, ERTi-4, ERTi-5, ERTi-7, ERTi-9, ERTi-12* |
| Material Types | Commercially Pure Titanium and Titanium Alloys |
| Welding Process | TIG / GTAW and other suitable fusion welding processes |
| Standards | AWS A5.16/A5.16M; ASTM B863* |
| Supply Form | Straight Wire / Coils / Spools* |
| Custom Options | Custom grades, diameters, lengths, and packaging available upon request |
*Available grades, dimensions, supply forms, and applicable standards are subject to the specific product and order requirements.
AWS A5.16/A5.16M:2023 is used for the classification of titanium and titanium-alloy welding electrodes, solid wires, and rods. ASTM B863 covers titanium and titanium alloy wire as a material product specification. These standards serve different purposes and should not be treated as interchangeable.
Applications of Titanium Welding Wire
Titanium welding wire is used for joining titanium components where the corrosion resistance, low density, and high strength-to-weight ratio of titanium need to be maintained across welded joints and fabricated assemblies.
Typical applications include:
Chemical processing equipment — tanks, piping, vessels, and other corrosion-resistant equipment
Heat exchangers — titanium tubes, plates, and fabricated components exposed to aggressive fluids
Marine and seawater equipment — components requiring excellent resistance to seawater and chloride-containing environments
Aerospace components — welded structures and components manufactured from titanium alloys such as Ti-6Al-4V
Industrial titanium fabrication — frames, piping systems, vessels, and customized titanium assemblies
Repair and maintenance — restoration and joining of titanium components where compatible filler metal is required
For critical applications, filler metal selection should follow the applicable welding procedure and material specifications rather than relying solely on the nominal alloy designation.
Request a Quote for Titanium Welding Wire
Please provide the base metal grade, required filler wire grade, wire diameter, welding process, applicable standard, quantity, and packaging requirements when requesting a quotation. We can supply titanium and titanium alloy welding wire according to your application and specification requirements, with customized dimensions and documentation available for qualified orders.
