Material and Performance Characteristics

TA2 is a Grade 2 pure titanium with a titanium content of ≥99.6%, and strict control of impurity elements such as iron and oxygen. It has balanced mechanical properties, with a tensile strength of approximately 450–500 MPa and an elongation of ≥20%, combining good plasticity and toughness to meet the requirements of medium-strength welding applications.

Welding Characteristics

    •    Pure argon (purity ≥99.99%) must be used for shielding during welding to prevent titanium from reacting with oxygen, nitrogen, or hydrogen at high temperatures, which could cause embrittlement.

•    The arc is stable, the weld bead formation is aesthetically pleasing, the molten pool has moderate fluidity, the weld joint strength can approach that of the base material, and it exhibits excellent corrosion resistance (especially in seawater, wet chlorine gas, and similar environments).

Application Scenarios

    • Industrial applications: chemical equipment (e.g., titanium reactors, heat exchangers), marine engineering (titanium alloy components for ships), medical devices (welding of titanium implants), etc.

• Material compatibility: primarily used for welding pure titanium base materials such as TA1 and TA2, and can also be used for simple welding of titanium alloys with lower requirements (e.g., TC4).

Specifications and Precautions

    • Common diameters: 1.6 mm, 2.0 mm, 2.4 mm, typically supplied in spools (e.g., 5 kg per spool).

• Storage must be moisture-proof and contamination-free. Before welding, clean oil residues and oxide layers from the wire surface to avoid affecting weld quality.

Summary

TA2 titanium welding wire, with its corrosion resistance and weldability due to its pure titanium composition, is the preferred choice for welding medium to low-strength pure titanium components, especially in applications requiring high corrosion resistance. Proper protective measures are critical to ensuring welding quality.