On January 3, 2026, Baoji Fairy Titanium Industry Co., Ltd. shipped 400kg of titanium welding wire to a customer. This shipment of ERTi7 titanium welding wire is a titanium-palladium alloy welding wire, with its core component being a titanium alloy containing 0.12% palladium (Ti-0.2Pd).
This welding wire is specifically designed for highly corrosive environments, such as oil pipelines and chemical equipment. The addition of palladium significantly improves the weld's resistance to pitting corrosion in chloride environments, giving it superior corrosion resistance in media containing chloride ions (such as seawater and salt spray). For example, in marine engineering, ERTi-7 welding wire can be used to weld titanium alloy pipelines, effectively preventing pitting and perforation problems caused by chloride ion corrosion.
What is the difference between ERTi7 and ERTi2 titanium welding wires?
ERTi-7 and ERTi-2 are different models of titanium alloy welding wires. The main differences lie in their chemical composition, mechanical properties, standards and specifications, and application scenarios. The following is a comparative analysis based on relevant information.
Chemical Composition and Standards: ERTi-2 is a pure titanium welding wire, based on high-purity titanium, with an oxygen (O) content of ≤0.25% and an iron (Fe) content of ≤0.30%. It conforms to AWS A5.16 and ASTM B863 standards and is suitable for applications requiring high corrosion resistance and formability. ERTi-7, on the other hand, has a core component of a titanium alloy (Ti-0.2Pd) containing 0.12% palladium. According to the classification convention for titanium welding wires, it belongs to titanium alloy welding wire (such as Gr.7), with the addition of elements such as palladium to enhance specific properties. Mechanical Properties and Processing Characteristics: ERTi-2 possesses medium strength (tensile strength approximately 345-450 MPa) and good plasticity (elongation ≥18%), exhibiting balanced weldability suitable for TIG and MIG welding, and at a lower cost. ERTi-7 titanium alloy welding wire boasts higher strength and superior corrosion resistance (e.g., enhanced resistance to pitting corrosion), and may be optimised for high-temperature or highly corrosive environments. Its welding process may be more complex, requiring strict parameter control to avoid cracking.
Application Scenarios: ERTi-2 is widely used in chemical equipment, seawater heat exchangers, food processing machinery, and other fields requiring good formability and corrosion resistance. ERTi-7 may be specifically designed for harsher environments, such as offshore platforms, chemical reactors, or high-temperature components, with its alloying design capable of handling special media or operating conditions.
In addition to ERTi7 titanium welding wire, we also produce ERTi1, ERTi2, ERTi5, and ERTi12 titanium welding wires. For more information on ERTi7 and ERTi2 titanium welding wire prices, please contact our sales engineers.
Contact information:
Tel: +86-0917- 3664600
WhatsApp: +8618791798690
